What does noctuīnus mean in Latin?

noctuīnus, a adjective, means “of or belonging to night-owls”.

How do you pronounce noctuīnus?

In classical Latin, [nɔk.tuˈiː.nʊs]; in ecclesiastical (church) Latin, [nok.tuˈiː.nus].

adjectivefirst/second-declension adjective

noctuīnus (feminine noctuīna, neuter noctuīnum)

Classical[nɔk.tuˈiː.nʊs]Ecclesiastical[nok.tuˈiː.nus]

adjectiverelationalof or belonging to night-owls
Nullum homini est perpetuom bonum: iam huic voluptati hoc adiunctum est odium. — Quid ais, propudium?c. 190 BCE, Plautus, Curculio 1.3.32–34

singular
form	masculine	feminine	neuter
nominative	noctuīnus	noctuīna	noctuīnum
genitive	noctuīnī	noctuīnae	noctuīnī
dative	noctuīnō	noctuīnae	noctuīnō
accusative	noctuīnum	noctuīnam	noctuīnum
ablative	noctuīnō	noctuīnā	noctuīnō
vocative	noctuīne	noctuīna	noctuīnum

plural
form	masculine	feminine	neuter
nominative	noctuīnī	noctuīnae	noctuīna
genitive	noctuīnōrum	noctuīnārum	noctuīnōrum
dative	noctuīnīs	noctuīnīs	noctuīnīs
accusative	noctuīnōs	noctuīnās	noctuīna
ablative	noctuīnīs	noctuīnīs	noctuīnīs
vocative	noctuīnī	noctuīnae	noctuīna

noctŭīnus, a, um, adj. 1. noctua,

I. of or belonging to night-owls: noctuini oculi, owls' eyes, Plaut. Curc. 1, 3, 35.

Proto-Indo-European *-nós Proto-Indo-European *-iHnos Proto-Italic *-īnos Latin -īnus Latin noctuīnus From noctua + -īnus.