collide: [17] Collide comes from Latin collīdere, a compound verb formed from com- ‘together’ and laedere ‘injure by striking’. Other English descendants of laedere are elide and lesion. => elide, lesion[collide etymology, collide origin, 英语词源]
1620s, from Latin collidere "strike together," from com- "together" (see com-) + laedere "to strike, injure by striking," which is of unknown origin. For Latin vowel change, see acquisition. Related: Collided; colliding.