Probably an n-extension of Proto-Indo-European *meh₂- (“to manipulate; great, good”), cognate with Latin mānēs (“ancestral spirits”), Latin manus (“hand, mound”). It is speculated that the initial meaning of the root is to make gestures → to manipulate (in Slavic) / to worship, pray (in Latin) → deception (in Slavic) / goodness (in Latin).
Despite the resemblance, a relation with Ancient Greek μανία (manía, “madness”) and Lithuanian mõnas (“apparition”) is doubtful. The later are usually derived from *men- (“to mind”).
*manà f
singular | dual | plural | |
---|---|---|---|
nominative | *manà | *maně | *many |
genitive | *many | *manu | *manъ |
dative | *maně | *manama | *manamъ |
accusative | *manǫ | *maně | *many |
instrumental | *manojǫ, *manǫ** | *manama | *manami |
locative | *maně | *manu | *manasъ, *manaxъ* |
vocative | *mano | *maně | *many |
* -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).