According to Beekes, the variation proves a Pre-Greek origin.
ἴκνῠς • (íknus) f (genitive ἴκνῠος); third declension
| Case / # | Singular | Dual | Plural | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominative | ἡ ῐ̓́κνῠς hē íknus |
τὼ ῐ̓́κνῠε tṑ íknue |
αἱ ῐ̓́κνῠες hai íknues | ||||||||||
| Genitive | τῆς ῐ̓́κνῠος tês íknuos |
τοῖν ῐ̓κνῠ́οιν toîn iknúoin |
τῶν ῐ̓κνῠ́ων tôn iknúōn | ||||||||||
| Dative | τῇ ῐ̓́κνῠῐ̈ / ῐ̓́κνυι têi íknuï / íknui |
τοῖν ῐ̓κνῠ́οιν toîn iknúoin |
ταῖς ῐ̓́κνῠσῐ / ῐ̓́κνῠσῐν taîs íknusi(n) | ||||||||||
| Accusative | τὴν ῐ̓́κνῠν tḕn íknun |
τὼ ῐ̓́κνῠε tṑ íknue |
τᾱ̀ς ῐ̓́κνῡς / ῐ̓́κνῠᾰς tā̀s íknūs / íknuas | ||||||||||
| Vocative | ῐ̓́κνῠ íknu |
ῐ̓́κνῠε íknue |
ῐ̓́κνῠες íknues | ||||||||||
| Notes: |
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