trajectory

The story

1. Proto-Indo-European · derived from*(H)yeh₁-“to throw, impel”
2. Latin · derived fromtrāiectus“thrown over or across”
3. New Latin · derived fromtrāiectōria f“trajectory”
4. English todaytrajectory

From New Latin trāiectōria f (“trajectory”) (used by Newton), the feminine of trāiectōrius (“of or pertaining to throwing across”), from Latin trāiectus (“thrown over or across”), past participle of trāiciō, from trans- (“across, beyond”) (see trans-) + iaciō (“to throw”) (from Proto-Indo-European *(H)yeh₁- (“to throw, impel”)). Middle French and Middle English had trajectorie (“end of a funnel”), from Latin trāiectōrium.

Words from the same roots