From Old Norse hraustr, from Proto-Germanic *hraustaz (“strong, active”).
An older theory by Pokorny derives the Old Norse from Proto-Indo-European *kreu- (“to shake, wave around”), comparing Tocharian A kru (“reed”), Tocharian B kärwats, Lithuanian krutéti (“to move”) (though this is now considered dated).[1]
hraustur (comparative hraustari, superlative hraustastur)
strong declension (indefinite) |
singular | masculine | feminine | neuter |
---|---|---|---|---|
nominative | hraustur | hraust | hraust | |
accusative | hraustan | hrausta | ||
dative | hraustum | hraustri | hraustu | |
genitive | hrausts | hraustrar | hrausts | |
plural | masculine | feminine | neuter | |
nominative | hraustir | hraustar | hraust | |
accusative | hrausta | |||
dative | hraustum | |||
genitive | hraustra | |||
weak declension (definite) |
singular | masculine | feminine | neuter |
nominative | hrausti | hrausta | hrausta | |
acc/dat/gen | hrausta | hraustu | ||
plural (all-case) | hraustu |
strong declension (indefinite) |
singular | masculine | feminine | neuter |
---|---|---|---|---|
nominative | hraustastur | hraustust | hraustast | |
accusative | hraustastan | hraustasta | ||
dative | hraustustum | hraustastri | hraustustu | |
genitive | hraustasts | hraustastrar | hraustasts | |
plural | masculine | feminine | neuter | |
nominative | hraustastir | hraustastar | hraustust | |
accusative | hraustasta | |||
dative | hraustustum | |||
genitive | hraustastra | |||
weak declension (definite) |
singular | masculine | feminine | neuter |
nominative | hraustasti | hraustasta | hraustasta | |
acc/dat/gen | hraustasta | hraustustu | ||
plural (all-case) | hraustustu |