Proto-Viet-Muong:
Meaning: paternal grandfather
Proto-Ruc: *pu.1
Ruc (Russian field rec.): pu:.1
Ruc (Lo'i's rec.): pu:.1
Ruc (Ferlus' rec.): pu:.1
Ruc meaning: paternal grandfather
Thavung-So: pu:.1
Thavung-So meaning: grandfather
Notes: < Tai ?
References: NTF29, NVL154
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