He drew the winning tile and brilliantly achieved a yakuman.
出和了り
winning on a discard
Written forms
和了り
Standard mahjong term for winning a hand; uses the kanji 和了 with okurigana り.
和り
Abbreviated spelling sometimes seen in mahjong contexts.
和がり
Variant with extra okurigana; less common.
Etymology
The reading あがり is the nominalized form of 上がる (to rise, to finish). The kanji 和了 are ateji borrowed from Chinese mahjong terminology, where they mean 'harmony' and 'completion'.