remittal vs payment

remittal and payment both are nouns.

Word	Noun	Adjective	Verb	Adverb
remittal	Yes	No	No	No
payment	Yes	No	No	No

As nouns, payment is a hypernym of remittal; that is, payment is a word with a broader meaning than remittal:

remittal (noun)	payment (noun)
the act of absolving or remitting; formal redemption as pronounced by a priest in the sacrament of penance	the act of paying money
an abatement in intensity or degree (as in the manifestations of a disease)	an act of requiting; returning in kind
a payment of money sent to a person in another place	a sum of money paid or a claim discharged