PROTO: *borc / *bośt
MEANING: five
BZK: bost
GIP: bost
ANV: (South) bortz, (North) bost, (Lezaka) borz
BNV: bost, (Garazi) bortz
SAL: bortz
LAB: bortz
BZT: borz
AZK: bortz
ZBR: bost
RNC: bost, bortz, (Ustárroz) borz
COMMENTS: *borc and *bośt seem to reflect original allomorphs: *borc in final position and *bośt before an affix? Cf. the variation of -rc- vs. -śt- in *ɦerce ~ *ɦeśte 'intestine', and a few other cases.
