Vedic had a voiceless bilabial fricative (, called upadhmānīya) and a voiceless velar fricative (, called jihvāmūlīya)-which used to occur when the breath visarga (अः) appeared before voiceless labial and velar consonants respectively.
The pronunciations of syllabic (ऋ), (लृ) and their long counterparts no longer retained their pure pronunciations, but had started to be pronounced as short and long (रि) and (ल्रि).