-mas

From Middle English -masse, -messe, from Old English -mæsse, the second element in several ritual and holiday names (e.g. Candelmæsse, Cristes mæsse, hlāfmæsse, etc.), from Old English mæsse (“the mass, church festival”). Compare Dutch mis, German Messe, Danish messe, Swedish mässa, Icelandic messa.

-mas

1. Indicates holidays or sacred days.

• feast day

• 'ams, MSA, Sam., ASM, AMS, sam, sma, SMA, Sam, S. Am., A.M.s, SAM, asm

-mas

1. Verbal stem occurring in the following root, aspect, and mode combinations:

Aspect	IMP	PERF	FUT	ITER	OPT
MOM			-MÁÁZ (roll)	-MÁÁZ (roll)
MOM	-MÁÁZ (roll)
SEM	-MÁÁZ (roll)	-MÁÁZ (roll)	-MÁÁZ (roll)	-MÁÁZ (roll)	-MÁÁZ (roll)

See also Appendix: Roots and stems derivation.