익숙해요 · 익숙했어요 · 익숙한 (+noun)
to be used to, to be familiar with
Example
처음에는 매웠지만 이제 한국 음식에 익숙해졌어요.
It was spicy at first, but now I've gotten used to Korean food.
Word parts
Probably related to 익다 (to ripen; to get used to) — what's 'ripe' is familiar.
Good to know
N에 익숙하다 = be used to N; add -해지다 for 'get used to'. Pronounced [익쑤카다].