English
acquaintance rape
From acquaintance + rape.
A compound of acquaintance + rape
Early Medieval Latin accognitāre
Old French acointier ‘to acquaint’
Anglo-Norman aquaintaunce
Middle English aqueyntaunce ‘Friendship, intimacy’
English acquaintance
Middle English rapen ‘to abduct; ravish; seize’
English rape
Today it means
noun Rape by somebody personally known by the victim, such as date rape, marital rape, or rape by a teacher or supervisor.
Language periods are conventional ranges, not dates for this word.
Etymograph / acquaintance rape