イ, もっ.て, もち
by means of, because, in view of, compared with
JLPT4 G4 S5 F126
Originally, an abbreviated form# of 台 (plow furrows) + 人 person (→ human agency) → *use* a plow to plow furrows → *with*; *by*; *from* (← create furrows with/by means of a plow).
[Full Kanji Etymology List]