What is the meaning of Messa?

Contraction of mess +‎ of.

mass, service

holiday

mess

mass (church service in which the Eucharist is celebrated)

to mass (celebrate mass)

mass

setting, putting, laying

sprout, shoot, bud

feminine singular of messo

definite feminine singular of messe

inflection of messe: simple past past participle

simple past

past participle

definite singular of messe

comparative degree of olc: worse

genitive singular/dual of mess

mass, church service

to say mass

to send an SMS message, to text

Source: Wiktionary