Related to *polъ (“flank”) or *polti (“to twine”) + *-ъka.
*polъka f
singular | dual | plural | |
---|---|---|---|
nominative | *polъka | *polъcě | *polъky |
genitive | *polъky | *polъku | *polъkъ |
dative | *polъcě | *polъkama | *polъkamъ |
accusative | *polъkǫ | *polъcě | *polъky |
instrumental | *polъkojǫ, *polъkǫ** | *polъkama | *polъkami |
locative | *polъcě | *polъku | *polъkasъ, *polъkaxъ* |
vocative | *polъko | *polъcě | *polъky |
* -asъ is the expected Balto-Slavic form but is found only in some Old Czech documents; -axъ is found everywhere else and is formed by analogy with other locative plurals in -xъ.
** The second form occurs in languages that contract early across /j/ (e.g. Czech), while the first form occurs in languages that do not (e.g. Russian).