From Old East Slavic ꙗице (jaice), from Proto-Slavic *ājьcè, diminutive of *ȃje (“egg”), ultimately from Proto-Balto-Slavic *ṓja (“egg”), from Proto-Indo-European *h₂ōwyóm (“egg”).
яйцо́ • (jajcó) n inan (genitive яйца́, nominative plural я́йцы, genitive plural яе́ц, relational adjective яе́чны, diminutive яе́чка)
| singular | plural | |
|---|---|---|
| nominative | яйцо́ jajcó |
я́йцы jájcy |
| genitive | яйца́ jajcá |
яе́ц jajéc |
| dative | яйцу́ jajcú |
я́йцам jájcam |
| accusative | яйцо́ jajcó |
я́йцы jájcy |
| instrumental | яйцо́м jajcóm |
я́йцамі jájcami |
| locative | яйцы́ jajcý |
я́йцах jájcax |
| count form | — | яйцы́1 jajcý1 |
1Used with the numbers 2, 3, 4 and higher numbers after 20 ending in 2, 3, and 4.
Inherited from Old East Slavic ꙗице (jaice), from Proto-Slavic *ājьcè, diminutive of *ȃje (“egg”), ultimately from Proto-Balto-Slavic *ṓja (“egg”), from Proto-Indo-European *h₂ōwyóm (“egg”).
яйцо́ • (jajcó) n inan (genitive яйца́, nominative plural я́йца, genitive plural яи́ц or я́иц*, relational adjective яи́чный, diminutive яи́чко) (* Colloquial.)