冶具[jigu] jig (tool)
鍛冶[kaji] smithing
刀鍛冶[katanakaji] swordsmith
冶金[yakin] metallurgy
冶金学[yakingaku] metallurgy (the science)

冶金学者[yakingakusha] metallurgist
冶工[yakou] metallurgical worker
陶冶[touya] training
鍛冶屋[kajiya] smith

シーソー遊び[shiisooasobi] seesaw (game)
悪遊び[waruasobi] prank
園遊会[enyuukai] garden party
宴遊[enyuu] drinking party hall
火遊び[hiasobi] playing with fire

回遊[kaiyuu] excursion
外遊[gaiyuu] foreign travel
旧遊の地[kyuuyuunochi] familiar haunts
吟遊詩人[ginyuushijin] troubadour
空中浮遊[kuuchuufuyuu] levitation

プー太郎[puutarou] vagabond
悪太郎[akutarou] bad boy
一姫二太郎[ichihimenitarou] It's good to have a girl first and then a boy
下郎[gerou] servant
外郎[uirou] sweet rice jelly

女郎[jorou] prostitute (esp. Edo period)
女郎花[ominaeshi] golden lace (Patrinia scabiosifolia)
新郎[shinrou] bridegroom
新郎新婦[shinroushinpu] bride and groom
バカ野郎[bakayarou] idiot