English
interferer
From interfere + -er.
Formed from interfere + -er
Proto-Indo-European *bʰerH- ‘to pierce, strike’
…
Proto-Italic *ferjō
Latin feriō ‘to hit, to strike, to smite, to beat, to…’
Old French ferir ‘to hit, to strike’
Old French entreferir ‘to hit one another’
English interfere
Today it means
noun A person who, or thing that, interferes.
Language periods are conventional ranges, not dates for this word.
Etymograph / interferer