sidus

[← Prot-Germ *seduz; OE sidu, seodu “custom; manner”; O Fris side “custom, habit”; O Sax sidu “habit, custom“; Dt zede “custom; tradition”; OHG situ “habit; traditions, customs” (Mod G Sitte); O Icel siðr “custom, habit” (Mod Icel siður)]

sidus - Nom, sing - Skeirns. III, 6
sidau - Dat, sing - Tim. II, III, 10
sidu - Acc, sing - Cor. I, XV, 33

1.1.4. (a)

nouns, -u- stem, masculine gender sunus (son)
	singular	plural
nominative	sunus	sunjus
genitive	sunaus	suniwē
dative	sunau	sunum
accusative	sunu	sununs
vocative	sunu

nouns, -u- stem, feminine gender handus (hand)
	singular	plural
nominative	handus	handjus
genitive	handaus	handiwē
dative	handau	handum
accusative	handu	handuns

nouns, -u- stem, neuter gender faihu (property, wealth)
	singular
nominative	faíhu
genitive	faíhaus
dative	faíhau
accusative	faíhu