and [yart, yart, yart*]X could be the greek letter chi-- which has K(r) sound as in Christmas (XMas) or X as a symbol of christ.

chi being found in synchronize..or brand name like kodachrome

and since its K sound.. an X is a Kiss!

PS to new users-- Yart is yet another re-hashed topic if you'd like to read about chi.. search the archives.. or repackage your questions in a new and clever way-- we are sucker's for that ploy!