戳

Right radical 戈 (halberd) anchors 戳 in the family of weapon-strikes: poking, jabbing, stamping with force. The pictograph shows an ancient pole-weapon with a curved blade; from there it gives 戳 its meaning of poking sharply with a finger or thrusting a seal-stamp into ink. Same 戈 radical in 战 (war), 武 (martial), 戏 (play) - all weapon or combat acts.

Left phonetic 翟 supplies the sound - dí shifted to chuō through onset and rime drift, a long-distance change typical of less-common phonetic-semantic compounds. 翟 itself depicts feathers 羽 above a 隹 short-tailed bird, picturing a long-tailed pheasant. As phonetic in 戳, the sound link is now opaque but historically grounded.