なんかいでも
any number of times; over and over again
Adverb
誰だれも言いってくれないなら、僕ぼくが何回なんかいでも、何百なんびゃく回かいでも言いってあげるよ、生いきててくれてありがとうって。
If no one else will say it, then I'll say it as many times as you need to hear it. Thank you for living.