Proto-Basque: *sisa-li / *sisa-ni
Meaning: 1 worm 2 leech
Bizkaian: uzan 2
Gipuzkoan: zizari 1, txitxare 1, izaiñ, izai 2
High Navarrese: zizari, zizare 1, izaiñ, izai 2, (Elkano) zirain 2
Low Navarrese: zizari 1, xixain 2, itxain 2
Salazarese: xixare 1
Lapurdian: zizari, zizare 1, xixain 2
Baztanese: zizari 1, xixari 1
Aezkoan: zirain 2
Zuberoan: zizari 1, xixari 1, zizein, zizeñ 2, xixain, xixein 2
Comments: In some but not all dialects the default form (zizari, zizare) denotes 'earthworm' and palatal forms (xixari, txitxare, etc.) denote intestinal worms. It is also possible that all or some of the Bsq words are related instead to PEC *ǯimǯV (~ *ʒ́imʒ́V) ‘leech; a biting insect’, or that the latter is an expressive variant of PEC *sēmsā.
