Shirabe
背子 せこ
  • noun (common) (futsuumeishi)
English JMdict
1
noun (common) (futsuumeishi) archaic female term or language my love;my dear;darling
said of a husband, lover or close male friend
2
noun (common) (futsuumeishi) archaic male term or language my friend;comrade
said of a close male friend
Other forms 夫子 【せこ】 · 兄子 【せこ】 (rarely used kanji form)

漢字 kanji used

背 stature, height 9画 · JLPT N 2 子 child, sign of the rat 3画 · JLPT N 4