English
inacquaintance
From in- + acquaintance.
Formed from in- + acquaintance
Early Medieval Latin accognitāre
Old French acointier ‘to acquaint’
Anglo-Norman aquaintaunce
Middle English aqueyntaunce ‘Friendship, intimacy’
English acquaintance
Today it means
noun Lack of acquaintance; ignorance.
Language periods are conventional ranges, not dates for this word.
Etymograph / inacquaintance