~をかわきりに(~を皮切りに)      => One after another; starting with ~ N1
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
かりそめにも => Whatever it is..., do not.... N1
Position, perspective
[切「き」]れない => Can't finish/complete A N3
Potential, Possibility
~んがため(に)/~んがための      => in order to ~ N1
~づめだ      => full of N1
なりとも/せめて~だけでも => at least; even just a little (adverbial particle) N1
ため => In order to, for N4
Purpose, target
めったな => hardly; rarely; seldom N2
Ban
ずくめ => completely; entirely; nothing but ~ N1
せめて => at least; at most ~ N2