Kyūjitai form of 木古内

a tree; more specifically, a living tree / the bent and gnarled trunk or roots of an old tree / wood, lumber / something made of wood / in ancient China, a wooden musical instrument

古: the past; ancient times

(chiefly women's speech) first person singular pronoun: I, me

to go; to come to one's place / to (a letter) be delivered / to depart / to rely (on a method) / (年が～) to age / (うまく～) to go well / イく: (slang) to have an orgasm, to come, to cum

past tense and perfective aspect of 行く (iku) [godan]

past tense and perfective aspect of 行う (okonau) [godan]

volitional form of 行く (iku, yuku) [godan]

negative of 行く (iku, yuku) [godan]

hypothetical and imperative forms of 行く (iku, yuku) [godan]