シュ, また, ほこ, ほこつくり, るまた
pike, windy-again radical (no. 79)
JLPT0 G13 S0 F5000
Originally, 又# hand + a stick-shaped tool/weapon → a throwing weapon (later employed with reference to a type of *pike*). 殳 also bears the sense of "stand an object upright" (via the idea of a weapon, thrown in an arc, that stands upright if it misses its target and hits the ground), but 殳 is nearly exclusively used as an *action indicator*.
[Full Kanji Etymology List]