English
interferant
From interfere + -ant.
A compound of interfere + -ant
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 applying for a patent that conflicts with an earlier one.
Language periods are conventional ranges, not dates for this word.
Etymograph / interferant