Proto-Austric: *ʔraʔ
Meaning: taro
Austroasiatic meaning: taro
Proto-Austronesian: *biRaʔ, *biRaq 'wild taro'
Austronesian meaning: wild taro, elephant's ear or itching taro, %Alocasia% spp.
Proto-Thai: KD *P-ʔrVk taro
References: Ben 221, Peiros 1998, 77, 100.