赤らむ
あからむ · akaramu · JLPT N1 · noun
red
🍅 赤 (aka, red) + らむ (verb ending for becoming): literally 'to become red'
赤らむ combines 赤 (red) with the verb-forming ending らむ, which marks a change into a state. It is used for a face flushing red or fruit reddening as it ripens.