Quoting LolaMcKitten:" LMAO - no, sorry but changing one letter does not make it a "feminine" form. Devlin is masculine, period ... [snip!] ... change it's etymology. And no - Cadence is a WORD, do you always randomly spell words however you want? It looks illiterate. "
And you appear to have nothing better to do with your time than to be a thorn in someone's side.
Yes, adding, omitting, or changing a letter can change a name or word from masculine to feminine and vice versa. To claim otherwise shows you lack knowledge of other languages (i.e. Spanish) in which this is common practice.
We all know cadence is a word. However, it is being used as a name. Everyone knows a NAME can be spelled however you'd like. Many people even create names nowadays. Claiming there is only one way to spell the NAME Caydence is moronic. It's the same as saying there is only one way to spell Ashley/Ashlee/Ashleigh/Ashly or Rachel/Rachael or even Kaitlyn/Caitlyn/Katlynn (as you've already pointed out), etc.
But, I grow tired of you. Happy trolling.