[nfw2]

Calen doesn't really violate #6 (it's short for calendar), but definitely violates #1 and #2. I took me a while to see the calendar connection because it looked like "Kay-len" to me. Also, 40k seems a bit steep for an early-stage company.

I would add uniqueness as a good criteria because it helps with SEO and branding and because unique names are often easier-to-remember (#3) than generic names.

What I would recommend if you want to go the calendar-based route is start with "cal", "calen", or "calend" and find a random syllable to complete the word in a unique and phonetically-obvious way. You probably can find something suitable for under $10k.

[nfw2]

Maybe you could go with "Caltic" ($8k). Then you could go with a Celtic theme, like use a 4-leaf-clover as the icon and a tagline like "Make your own luck" or something like that

Or if you don't mind spending some money, calenda is 30k