σιρός

Ancient Greek

According to Beekes, probably from Pre-Greek as there's no connection with other words.

The ι is short in some sources and long in others, thus:

or

σῑ̆ρός • (sī̆rós) m (genitive σῑ̆ροῦ); second declension

Second declension of ὁ σῑ̆ρός; τοῦ σῑ̆ροῦ (Attic)

Case / #	Singular	Dual	Plural
Nominative	ὁ σῑ̆ρός ho sī̆rós	τὼ σῑ̆ρώ tṑ sī̆rṓ	οἱ σῑ̆ροί hoi sī̆roí
Genitive	τοῦ σῑ̆ροῦ toû sī̆roû	τοῖν σῑ̆ροῖν toîn sī̆roîn	τῶν σῑ̆ρῶν tôn sī̆rôn
Dative	τῷ σῑ̆ρῷ tōî sī̆rōî	τοῖν σῑ̆ροῖν toîn sī̆roîn	τοῖς σῑ̆ροῖς toîs sī̆roîs
Accusative	τὸν σῑ̆ρόν tòn sī̆rón	τὼ σῑ̆ρώ tṑ sī̆rṓ	τοὺς σῑ̆ρούς toùs sī̆roús
Vocative	σῑ̆ρέ sī̆ré	σῑ̆ρώ sī̆rṓ	σῑ̆ροί sī̆roí
Notes:	This table gives Attic inflectional endings. For declension in other dialects, see Appendix:Ancient Greek dialectal declension.

“σιρός”, in Liddell & Scott (1940) A Greek–English Lexicon, Oxford: Clarendon Press
σιρός in Bailly, Anatole (1935) Le Grand Bailly: Dictionnaire grec-français, Paris: Hachette
Beekes, Robert S. P. (2010) Etymological Dictionary of Greek (Leiden Indo-European Etymological Dictionary Series; 10), with the assistance of Lucien van Beek, Leiden, Boston: Brill, →ISBN