・ 音 ダン,タン
Sino-Vietnamese: đoạn
Han Viet doan, as in giai doan (stage) and thu doan (means). With 殳 (hand with a tool) on the right, picture carving a rock slope into steps.
Stroke data: KanjiVG (CC BY-SA 3.0) — kanjivg.tagaini.net
階段を上って二階へ行きます。 (かいだんをのぼってにかいへいきます)
I go up the stairs to the second floor.