訓 しりぞ(く),しりぞ(ける),ひ(く),の(く),の(ける),ど(く) ・ 音 タイ
Sino-Vietnamese: thoái
Han Viet thoai, as in thoai lui (retreat) and thoai hoa (degenerate). The movement radical 辶 shows it is about moving: stepping backwards.
Stroke data: KanjiVG (CC BY-SA 3.0) — kanjivg.tagaini.net
祖父は去年会社を退職しました。 (そふはきょねんかいしゃをたいしょくしました)
My grandfather retired from his company last year.