English
manneristic
From manner + -istic.
Formed from manner + -istic
Latin manus ‘hand’
…
Vulgar Latin *manāria
Old French maniere
Anglo-Norman manere
Middle English manere ‘the usual practice or habit of someone’
English manner
Today it means
adj Relating to, or exhibiting, mannerisms.
Language periods are conventional ranges, not dates for this word.
Etymograph / manneristic