From pre-Germanic *deuppaz < *dʰewbʰnós, from Proto-Indo-European *dʰewbʰ-. The devoicing of what came from the root-final *-bʰ- is due to Kluge's law.[1] Cognate to Old Church Slavonic дъбрь (dŭbrĭ, “valley”), Lithuanian dubùs (“deep, hollow”), Albanian det (“sea”), Welsh dwfn (“deep”).
*deupaz
Strong declension | ||||||
---|---|---|---|---|---|---|
Case | Masculine | Feminine | Neuter | |||
Singular | Plural | Singular | Plural | Singular | Plural | |
Nominative | *deupaz | *deupai | *deupō | *deupôz | *deupą, -atō | *deupō |
Accusative | *deupanǭ | *deupanz | *deupǭ | *deupōz | *deupą, -atō | *deupō |
Genitive | *deupas, -is | *deupaizǫ̂ | *deupaizōz | *deupaizǫ̂ | *deupas, -is | *deupaizǫ̂ |
Dative | *deupammai | *deupaimaz | *deupaizōi | *deupaimaz | *deupammai | *deupaimaz |
Instrumental | *deupanō | *deupaimiz | *deupaizō | *deupaimiz | *deupanō | *deupaimiz |
Weak declension | ||||||
Case | Masculine | Feminine | Neuter | |||
Singular | Plural | Singular | Plural | Singular | Plural | |
Nominative | *deupô | *deupaniz | *deupǭ | *deupōniz | *deupô | *deupōnō |
Accusative | *deupanų | *deupanunz | *deupōnų | *deupōnunz | *deupô | *deupōnō |
Genitive | *deupiniz | *deupanǫ̂ | *deupōniz | *deupōnǫ̂ | *deupiniz | *deupanǫ̂ |
Dative | *deupini | *deupammaz | *deupōni | *deupōmaz | *deupini | *deupammaz |
Instrumental | *deupinē | *deupammiz | *deupōnē | *deupōmiz | *deupinē | *deupammiz |