先祖

N2 先々月 sensengetsu month before last N2 先々週 sensenshuu 2 weeks before N2 先端 sentan pointed end, tip N2 先頭 sentou head, lead, vanguard N2 真っ先 massaki foremost, beginning N3 先日 senjitsu the other day, a few days ago N3 先行 senkou preceding, going first N4 祖母 sobo my grandmother N4 祖父 sofu my grandfather

N5 先 sen / saki, ma.zu before, ahead, previous N3 祖 so ancestor, pioneer, founder