The story
- Latin · derived fromin-
- Medieval Latin · derived fromimpropriātus
- English todayimpropriate
From Medieval Latin impropriātus, past participle of impropriāre (“to take as one's own, appropriate”), from Latin in- + proprius (“one's own”).
Words from the same roots
Latinin- all →
intrusionenactinferinfallibleinanimateintransigentincarcerateamainempriseen-in-incatenationinconcoctincremableirrealis
Etymology from Wiktionary, CC BY-SA 4.0.