Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Shanduko inonyanya kusiyanisa phonological inoparadzanisa Proto-Indo-Iranian kubva kuProto-Indo-European ndiko kudonha kwemablauting vowels * e, * o, * a mune imwe vowel, Proto-Indo-Iranian * a (asi ona mutemo waBrugmann). Mutemo waGrassmann, mutemo waBartholomae, uye mutemo weRuki wakazarawo muProto-Indo-Iranian.  Mubvunzo: Ndeupi musiyano wakatanhamara zvikurusa?
kuputsika kwemablauting vowels *e, *o, *a kuva vowel imwe chete