擦れる
すれる · sureru · JLPT N1 · noun
hang-up
🩹 擦 (rub) + れる (intransitive ending): the thing that gets rubbed, like skin under a tight collar
擦る (suru) is the transitive 'to rub'. Adding れる makes it intransitive, 'to get rubbed', as when skin rubs raw against fabric.
擦 — hand radical 扌 + 察 (chá, inspect)
擦 is a phono-semantic compound. The hand radical 扌 indicates the meaning — an action done with the hand, namely rubbing, wiping, or scrubbing. The right side 察 supplies the sound, giving the modern reading cā. The character is relatively late and has always centered on the idea of friction by hand.