叫
キョウ, さけ.ぶ

shout, exclaim, yell

JLPT2 G7 S6 F1426

The relevant seal inscription form of 丩 shows it to be twisted threads. 叫 is 口 mouth +丩# for the sound alone to simulate a cry or calling noise (compare 号) → *yell*; *cry out*; *shout*; *scream* → *call*; *name* (in derogatory senses); *appeal* (for); *clamor*.

[Full Kanji Etymology List]