From Proto-Germanic *siduz, from Proto-Indo-European *swedʰ- (“custom, habit”). Cognate to Old English sidu (“a custom; a manner; a rite; purity”), Old High German situ (“a custom, a habit”) (whence German Sitte), Gothic 𐍃𐌹𐌳𐌿𐍃 (sidus), Ancient Greek ἦθος (êthos).
siðr m
masculine | singular | plural | ||
---|---|---|---|---|
indefinite | definite | indefinite | definite | |
nominative | siðr | siðrinn | siðir | siðirnir |
accusative | sið | siðinn | siðu | siðuna |
dative | siði | siðinum | siðum | siðunum |
genitive | siðar | siðarins | siða | siðanna |