See bāka and p. 936, col. 2.
vāká mfn. sounding, speaking (ifc.; cf. cakra-v°, cīrī-v°)
vāká m. ([RV.] &c.) or f(A/). ([VS.]; [MaitrS.]) a text, recitation or formula (in certain ceremonies), rite
vāká m. pl. chattering, murmuring, humming, [AV.]
vāká n. N. of various Sāmans, [ĀrṣBr.]