Interfere
late Middle English: from Old French s'entreferir ‘strike each other’, from entre- ‘between’ + ferir (from Latin ferire ‘to strike’).
wiktionary
Old French entreferir, from entre- + ferir(“to hit, to strike”), itself from the Latin verb ferio.
etymonline
interfere (v.)
formerly also enterfere, mid-15c., enterferen, "intermingle or mix (different things), interpose," also "to interfere," from Old French enterferer "exchange blows, strike each other," from entre- "between" (see entre-) + ferir "to strike," from Latin ferire "to knock, strike," related to Latin forare "to bore, pierce" (from PIE root *bhorh- "hole"). Compare punch (v.), which has both the senses "to hit" and "to make a hole in").
Figurative sense of "to meddle with, oppose unrightfully" is from 1630s. Related: Interfered; interfering. Modern French interférer is from English.
