-ianus

See also: ianus and Ianus

Latin

Alternative forms

• -ānus, -ēnus, -īnus, -ūnus

Etymology

Perhaps from -i(us) +‎ -ānus. Compare Proto-Slavic *-janъ.

Pronunciation

• (Classical Latin) IPA^(key): /iˈaː.nus/, [iˈäːnʊs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /iˈa.nus/, [iˈäːnus]

Suffix

-iānus (feminine -iāna, neuter -iānum); first/second-declension suffix

1. Enlarged form of -ānus, especially frequent in adjectives formed from proper names.

   Catullus + -iānus → Catulliānus

   Cicerō (stem: Cicerōn-) + -iānus → Cicerōniānus

   Tīrō (stem: Tīrōn-) + -iānus → Tīrōniānus

Declension

First/second-declension adjective.

	singular				plural
	masculine	feminine	neuter		masculine	feminine	neuter
nominative	-iānus	-iāna	-iānum		-iānī	-iānae	-iāna
genitive	-iānī	-iānae	-iānī		-iānōrum	-iānārum	-iānōrum
dative	-iānō	-iānae	-iānō		-iānīs
accusative	-iānum	-iānam	-iānum		-iānōs	-iānās	-iāna
ablative	-iānō	-iānā	-iānō		-iānīs
vocative	-iāne	-iāna	-iānum		-iānī	-iānae	-iāna

Derived terms

Latin terms suffixed with -ianus

Descendants

• Catalan: -ià
• → English: -ian
• Italian: -iano
• Old French: -ien
  • Middle French: -ien
    • French: -ien
  • → Middle English: -ien, -ian, -ion, -ione, -ioun, -yen, -yone, -youn
    • English: -ian
    • Scots: -ian
• → Portuguese: -iano
• Romanian: -ian
• Spanish: -iano

References

• “-iānus” on page 817/1 of the Oxford Latin Dictionary (1st ed., 1968–82)