.NP    KOU-LUA :Second person dual pronoun (independent)
*0     << PN *kimo-rua
*1     Cf. NP *koo-lua. 
*8     Note. MAO and EUV are the languages which reflect both *ko- and *kou-. EUV (and perhaps EFU, ANU) suggest that *kolua was the preposed form.
EFU    Koulua. :Second person dual pronoun, you, free form (Bgs)
EUV    Koulua. :Vous(deux), forme tonique (Rch)
MAO    Kourua. :Second person dual pronoun, you (MAN) (Bgs)
REN    Kougua. :Second person dual pronoun, you (Ebt)
ROT    'Aura. :Second person dual pronoun, you two (Cwd)
SAM    'Oulua. :Second person dual pronoun (Prt)
SIK    Koulua. :You (for two people) (Sps)
TOK    Koulua. :Second person dual pronoun (Sma)
TVL    Koulua. :You two (Rby)
PIL    Khoulua. :You (2d independent pronoun) (Hvn)
WUV    Goulua. :Vous deux (2nd person dual independent pronoun) (Hmn)