Early forms of 殳 show a hand holding some kind of tool or weapon (see below). Interpretations of what exactly is depicted vary: Qiú has “a hammer-like implement for hitting”, while Outlier has “a staff-like weapon”. The original meaning of the word that 殳 pointed is also uncertain. Qiú has “a kind of weapon”, Outlier has “a bamboo or wooden spear”.¹ Kroll has “a bamboo lance”.² In any case, one will see 殳 solely as a component in other graphs.
Developmental overview for 殳 [source].