Meaning

noun a place of worship that has its own altar

noun a service conducted in a place of worship that has its own altar

originFrom Middle English chapele, chapel, from Old French chapele, from Late Latin cappella (“little cloak; chapel”), diminutive of cappa (“cloak, cape”). Doublet of capelle. (printing office): Said to be because printing was first carried on in England in a chapel near Westminster Abbey.

Etymology from Wiktionary, CC BY-SA 3.0