Otiose

Otiose (pronounced oh-shee-ohs or oh-tee-ohs)

(1) Being at leisure; idle; indolent (rare).

(2) Ineffective or futile.

(3) Having no reason for being (raison d’être); having no point, superfluous or useless, having no reason or purpose.

(4) Done in a careless or perfunctory manner (rare).

1794: From the Latin ōtiōsus (having leisure or ease, unoccupied, idle, not busy, undisturbed), the construct being ōti(um) (leisure, spare time, freedom from business) + -ōsus (the adjectival suffix); source of the French oiseux, the Spanish ocioso and the Italian otioso, from ōtium (leisure, free time, freedom from business) of unknown origin.  The meaning "at leisure, idle" dates from 1850, often quoted in the literature of the time in the Latin phrase otium cum dignitate (leisure with dignity).  The earlier adjective in English was otious (at ease) from the 1610s and Middle English had the late fifteenth century noun otiosity.  The -ōsus suffix was from the Old Latin -ōsos, from -ōnt-to-s, from the Proto-Italic -owonssos, from -o-wont-to-s, the last being a combination of two primitive Indo-European suffixes: -went- (& -wont-) and –to.

Otium cum dignitate: Lindsay Lohan enjoying a dignified rest, Los Angeles, 2014.