Knave

 Knave (pronounced neyv)

(1) An unprincipled, untrustworthy, or dishonest person.  A rogue (archaic).

(2) A card (1 x hearts, diamonds, clubs, spades) in the standard fifty-two card pack of playing cards.  Also known as the Jack, the choice of word being sometimes used as an indicator either of class or geographical origin.

(3) A male servant of the lower ranks (archaic).

(4) A man of humble position (archaic).

Pre 1000: From the late Old English cnafa (boy, male child; male servant) from the Proto-Germanic knabon- (source also of the Old High German knabo (boy, youth, servant) and the German knabe (boy, lad)) and thought likely related to the Old English cnapa (boy, youth, servant), the Old Norse knapi (servant boy), the Dutch knaap (a youth, servant), the Middle High German knappe (a young squire) and the German Knappe (squire, shield-bearer).  The ultimate origin is a mystery, the most popular speculation being "stick, piece of wood".  Knave, knavess & knavery are nouns, knavish is an adjective and and knavishly is an adverb; the noun plural is knaves.

Cards and class

The sense of a "rogue or rascal" emerged circa 1200, thought probably reflective of a the (ever-present) societal tendency to equate the poor and “those of low birth" with poor character and propensity to crime, English poet & satirist Alexander Pope (1688-1744) in Essay on Man (1732-1734), capturing the feeling: “From the next row to that whence you took the knave, take the seven; from the next row take the five; from the next the queen.  To show mercy towards such a knave is an outrage to society!”  Despite that however, in Middle English didn’t lose the non-pejorative meaning, a knave-child (from the Scottish knave-bairn) being a male child.  The use in playing cards began in the 1560s, a knave being always the lowest scoring of the court cards.

Lindsay Lohan's Royal Routine (Ace down to the 10 in one suit) in The Parent Trap (1998).  The most desirable of the 40 different straight flush possibilities, under standard poker rules, the odds against holding a Royal Routine are 649,739:1 whereas those of any straight flush are a more accessible 72,192:1.  The difference in the math is there are fewer cards available for a Royal Routine to be assembled.

The use of Jack in cards came from the influence of French.  What the French called a valet, the English knew as a knave (in the sense of a young, male servant).  During the seventeenth century the French started to call such staff “Jack” apparently on the basis of it being a common name among the serving class; it was also the name used for the Knave of trumps at the game All Fours.  Although it appears widely to have been played by all classes, All Fours suffered, perhaps because it was a quick, trick-taking game, the reputation of being something enjoyed only by the lower classes and the choice of “knave” or “jack” came to be treated as a class-signifier, Charles Dickens (1812-1870) in Great Expectations (1860-1861) having Estella express scorn for Pip’s use of the latter.  The class-consciousness in English extends to the adoption of the German Bauer (farmer or peasant), as Bower, collectively to describe (usually when a pair of trumps (by color)) the Jacks in some games.  Knave survived in widespread use well into the twentieth century but US cultural influence has rendered it now mostly obsolete except for a few games where it persists and possibly among those who prefer a dish of tea to a cup.

In packs of cards, Knave (marked Kn) was used until Jack (J) became entrenched after 1864 when, US card-maker Samuel Hart published a deck using J instead of Kn to designate the knave to avoid confusion with the visually similar King (marked K).  Historically, in some southern Italian, Spanish and Portuguese decks, there were androgynous knaves sometimes referred to as maids.  This tradition survives only in the Sicilian Tarot deck where the knaves are unambiguously female and always known as maids.

In Tarot

The Jack of Spades card indicates a young man of dark complexion, cunning and devious.  Intelligent, brilliant even, but cynical and exploitative, he will use you and walk away.  The Jack of Spades is a sign you will face adversity from a ruthless person; he cannot be trusted.  The central problem in dealing with Jack of Spades types is they're inherently transactional so a relationship can seem wondrously fulfilling and probably is until it outlives its usefulness at which point one will be cast adrift... or worse.  Exemplary Jack of Spades: Donald Trump (b 1946; US president 2017-2021; president elect 2024).  

The Jack of Clubs means a good friend.  Although flirtatious, he is a sincere, skilful and brave young man.  For a woman, this card represents her fiancé but for a man, it means a more successful and richer rival. This card also signifies education and intelligence.  There's a fine nuance in Tarot between the Jacks of Clubs and Hearts in that for men it means a rival and for women a fiancé and the latter hopes he may also be represented by Hearts.  Exemplary Jack of Clubs: Elon Musk FRS (b 1971).

The Jack of Hearts signifies an honest young man in love. He is attractive, kind and generous, the card often announcing a new and intimate friendship. As a lover, the Jack of Hearts is trustworthy, even when absent he will be faithful.  Committed and sincere, he's a most eligible bachelor and thus a "good catch".  Tarot readers though cast a wide vista and drawing the Jack of Hearts is as likely to be indicative of the  arrival of a good, dependable friend as it is of impending romance.  Exemplary Jack of Hearts: Sir Tony Blair (b 1953; UK prime-minister 1997-2007).

The Jack of Diamonds represents the Messenger, symbolising also an unfaithful assistant or dishonest merchant or employee. The Jack of diamonds is a young man who comes and goes, taking more than is permitted and although quick-witted and cunning, is not trustworthy although like Jack of Diamonds Bernie Madoff (1938–2021), they can dazzle to deceive.  Exemplary Jack of Spades: Michael Cohen (b 1966; personal counsel to Donald Trump 2006-2018).

Of kings, axes and swords.

While suits are great significance to tarot card readers, in poker the rules the rules recognize only numbers and the odds the combination of cards create: a full house (3 of one card, 2 of another) with odds of 693.1667:1 beats a flush (5 cards of the same suit), a hand with odds of 507.8019:1.  The royal routine's odds are a less than encouraging 649,739:1.  The face cards are assigned a nominal number (Jack=11, Queen=12, King=13) and the Ace is a special case, able to assume a value of “1” or “14” and thus able to be used to create an “A-2-3-4-5” or a “10-J-Q-K-A” straight.  Because, in hands of equal numerical count, the suits do not affect the math used to calculate the odds, in the unlikely (though not impossible) event four players at a table each have a royal routine, the pot is split four ways.  However, except in competitions conducted under defined rules, there is no reason why a house can’t create a “tie-breaker” rule which assigns a hierarchy to the suits.  Provided the rule is clear, unambiguous and adequately communicated to all players, it should be uncontroversial and would define the winner if more than one straight flush of the same numeric.