切る => Give up, stop... N3
Happens next
切る/切れる/切れない => to do something completely to the end/unable to do; too much to finish/complete N3
[切「き」]れない => Can't finish/complete A N3
Potential, Possibility
~をかわきりに(~を皮切りに)      => One after another; starting with ~ N1
...ぬ => Not (Negative) N3
Emphasize negative meaning
ねばならない/ねばならぬ/ねば => have to do; must; should ~ N2
~ぬうちに => While not....; before... N1
Time
ぬきにして/~ぬきで => Exclude A; Stop/end A; Without A N2
Miscellaneous
~ぬばかり => As if; as though N1
Situation
~ぬまに => without one's knowledge, without noticing N1
Time
ぬく => Do A until the end/last N2
Will, Decision, “Doing”
ぬまでも => not to say; although it does not reach the level of ~ N1
Description