ソ, く.む, くみ, ぐみ

association, braid, plait, construct, assemble, unite, cooperate, grapple

JLPT3 G2 S11 F204

As per # (pile) + thread → threads piled in braiding (compare ) → *braid* → *put together*; *assemble*; *construct*; *cooperate*; *set*; *suit*; *assortment*; *group of people* → *class*; *crew*; *party*; *company*.

[Full Kanji Etymology List]