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

going

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

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

negative of 行く (iku, yuku) [godan]

中々: very, quite, considerably, rather, by no means (with negative verb)

very, quite, considerably, rather / by no means (with negative verb)

the daytime, during the day / a half day, half of a day

inside

(physics) power