18. relative pronoun "who" (yah, m.):
 
  Sg. Du. Pl.
Nom. yah yau ye
Acc. yam yau yan
Ins. yena yabhyam yaih
Dat. yasmai yabhyam yebhyah
Abl. yasmat yabhyam yebhyah
Gen. yasya yayoh yesam
Loc. yasmin yayoh yesu
Voc. yah yau ye