Perhaps -νος (-nos) + -η (-ē) on α stems like Latin -ānus and Latin -ārium.(Can this(+) etymology be sourced?)
-ᾰ́νη • (-ắnē) f (genitive -ᾰ́νης); first declension
| Case / # | Singular | Dual | Plural | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominative | -ᾰ́νη -ắnē |
-ᾰ́νᾱ -ắnā |
-ᾰ́ναι -ắnai | ||||||||||
| Genitive | -ᾰ́νης -ắnēs |
-ᾰ́ναιν -ắnain |
-ᾰνῶν -ănôn | ||||||||||
| Dative | -ᾰ́νῃ -ắnēi |
-ᾰ́ναιν -ắnain |
-ᾰ́ναις -ắnais | ||||||||||
| Accusative | -ᾰ́νην -ắnēn |
-ᾰ́νᾱ -ắnā |
-ᾰ́νᾱς -ắnās | ||||||||||
| Vocative | -ᾰ́νη -ắnē |
-ᾰ́νᾱ -ắnā |
-ᾰ́ναι -ắnai | ||||||||||
| Notes: |
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