Sorry for this question. I can’t find the answer elsewhere.
Thanks for your reply.
I don’t know either, but here is a clue:
COLLADA is a COLLAborative Design Activity for establishing an open standard Digital Asset schema for interactive 3D applications.
Same way you pronounce COLLAborative I guess.
Additional info:
COLLADA name comes originally from a wind name:
http://www.cloudwall.com/wind/local/l131.htm
It is a spanish word so it could be pronounced “Coy-ya-da”. We do pronounce it as “Co-la-da” though.