Mural

Mural (pronounced myoor-uhl)

(1) A large picture painted or affixed directly on a wall or ceiling.

(2) A greatly enlarged photograph attached directly to a wall.

(3) A wallpaper pattern representing a landscape or the like, often with very widely spaced repeats so as to produce the effect of a mural painting on a wall of average size; sometimes created as a trompe l'oeil (“deceives the eye”).

(4) Of, relating to, or resembling a wall.

(5) Executed on or affixed to a wall:

(6) In early astronomy, pertaining to any of several astronomical instruments that were affixed to a wall aligned on the plane of a meridian; formerly used to measure the altitude of celestial bodies.

1400–1450: Late Middle English from the Latin mūrālis (of or pertaining to a wall), the construct being mūrus (wall) + ālis (the Latin suffix added to a noun or numeral to form an adjective of relationship; alternative forms were āris, ēlis, īlis & ūlis).  The Latin mūrālis was from the Old Latin moiros & moerus, from the primitive Indo-European root mei (to fix; to build fences or fortifications) from which Old English picked-up mære (boundary, border, landmark) and Old Norse gained mæri (boundary, border-land).  In the historic record, the most familiar Latin form was probably munire (to fortify, protect).  The sense of "a painting on a wall" emerged as late as 1915 although that was short for mural-painting (a painting executed upon the wall of a building) which had been in use since 1850, a use derived from mural in its adjectival form.

The adjective intermural (between walls) dates from the 1650s, from the Latin intermuralis (situated between walls), the construct being from inter- (between) + muralis (pertaining to a wall) from mūrus (wall).  The adjective intramural (within the walls (of a city, building etc)) dates from 1846, the construct being intra- (within) + muralis (pertaining to a wall) from mūrus (wall); it was equivalent to Late Latin intramuranus and in English, was used originally in reference to burials of the dead.  It came first to be used in relation to university matters by Columbia in 1871.

Mural in the style of street art (graffiti) of Lindsay Lohan in hijab (al-amira) with kebab, Melbourne, Australia. 

Mural montage: Donald Trump osculating with Vladimir Putin, Benjamin Netanyahu, Boris Johnson, Pope Francis and Ted Cruz.