索
サク

cord, rope

JLPT1 G7 S10 F1127

The relevant bronzeware inscription form combines the stalk of a hemp plant + fibers torn from the stalk → separate the slender fibers of a hemp plant and pile them up. 索 adds 糸# thread → the separate fibers of a *rope* or *cord* → *search (for)* (← separate in searching).

[Full Kanji Etymology List]