Maybe from σειρόω (seiróō) or alternatively from Pre-Greek.
σῐ́ραιον • (sĭ́raion) n (genitive σῐραίου); second declension
| Case / # | Singular | Dual | Plural | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominative | τὸ σῐ́ραιον tò sĭ́raion |
τὼ σῐραίω tṑ sĭraíō |
τᾰ̀ σῐ́ραιᾰ tằ sĭ́raiă | ||||||||||
| Genitive | τοῦ σῐραίου toû sĭraíou |
τοῖν σῐραίοιν toîn sĭraíoin |
τῶν σῐραίων tôn sĭraíōn | ||||||||||
| Dative | τῷ σῐραίῳ tôi sĭraíōi |
τοῖν σῐραίοιν toîn sĭraíoin |
τοῖς σῐραίοις toîs sĭraíois | ||||||||||
| Accusative | τὸ σῐ́ραιον tò sĭ́raion |
τὼ σῐραίω tṑ sĭraíō |
τᾰ̀ σῐ́ραιᾰ tằ sĭ́raiă | ||||||||||
| Vocative | σῐ́ραιον sĭ́raion |
σῐραίω sĭraíō |
σῐ́ραιᾰ sĭ́raiă | ||||||||||
| Notes: |
| ||||||||||||