御孫さん[omagosan] grandchild
公孫樹[kousonju] ginkgo (Ginkgo biloba)
玄孫[genson] great-great-grandchild
子孫[shison] descendants
児孫[jison] children and grandchildren

孫引き[magobiki] citation at second remove
孫息子[magomusuko] grandson
孫娘[magomusume] granddaughter
嫡孫[chakuson] eldest son's descendants

謙遜[kenson] humble
謙遜語[kensongo] humble language
遜色[sonshoku] inferiority
遜色がある[sonshokugaaru] to be inferior to
遜色がない[sonshokuganai] bears comparison with (something)

不遜[fuson] arrogance
傲慢不遜[goumanfuson] haughty
遜る[herikudaru] to deprecate oneself and praise the listener
傲岸不遜[gouganfuson] arrogance
尊大不遜[sondaifuson] arrogant and presumptuous