What does parvior mean in Latin?

parvior, a adjective, means “comparative degree of parvus”.

How do you pronounce parvior?

In classical Latin, [ˈpar.wi.ɔr]; in ecclesiastical (church) Latin, [ˈpar.vi.or].

adjectivethird declension

parvior (comparative, neuter parvius, adverb parvius)

Classical[ˈpar.wi.ɔr]Ecclesiastical[ˈpar.vi.or]

parvius sg. nom. n.; sg. acc. n.; sg. voc. n.

singular
form	masculine	feminine	neuter
nominative	parvior	parvior	parvius
genitive	parviōris	parviōris	parviōris
dative	parviōrī	parviōrī	parviōrī
accusative	parviōrem	parviōrem	parvius
ablative	parviōre parviōrī	parviōre parviōrī	parviōre parviōrī
vocative	parvior	parvior	parvius

plural
form	masculine	feminine	neuter
nominative	parviōrēs	parviōrēs	parviōra
genitive	parviōrum	parviōrum	parviōrum
dative	parviōribus	parviōribus	parviōribus
accusative	parviōrēs parviōrīs	parviōrēs parviōrīs	parviōra
ablative	parviōribus	parviōribus	parviōribus
vocative	parviōrēs	parviōrēs	parviōra

From parvus (“small”) + -ior (“-er”). A rare regularly formed alternative to the usually suppletive comparative form minor.