scold, reprove
𠮟 centers on sharp verbal correction: scolding or reproving someone for a fault.
𠮟 combines 口 (mouth) with 匕, likely as a phonetic component. The exact historical development is uncertain.
A mouth 口 beside a spoon-like 匕: imagine a parent holding a spoon and scolding a child for not eating properly.
For シツ, imagine a sharp 'shh-tsk' sound made while scolding: the hiss and click cue シツ as the sound of reproof.