Proto-IE: *swē, *swō (Gr hw-)
Meaning: part./conj.
Old Greek: hom. hōs 'wie', lokr. wóti 'was auch immer', att. hótis, hom. hóppōs, att. hópōs 'wie'
Latin: sī 'wenn', sī-c 'so'; suad 'sie' OLat (Festus);
Other Italic: Paelign sua 'und'; Osk svaí, svae; swā; Umbr sue 'wenn', so-pir 'quicumque, qualis', surur, sūror, suront, sururont 'item'; Volsk se pis 'si quis'
References: WP II 458
