interjection

The story

1. Latin · derived frominteriectiōnem
2. Old French · derived frominterjection
3. Middle English · inherited frominterjeccioun
4. English todayinterjection

From Middle English interjeccioun, from Old French interjection (13th century), from Latin interiectiōnem, accusative singular of interiectiō (“throwing or placing between; interjection”), perfect passive participle of intericiō (“throw or place between”), from inter (“between”) + iaciō (“throw”). Displaced Old English betwēoxāworpennes (literally “between-thrown-out-ness”), a calque of the Latin.