-iz

• -itz

Uncertain, possibilities include:

• a variant of the plural suffix -itz found in anitz (“many”).
• a variant of the collective suffix -tza.
• derived from the Latin genitive -icī as used in personal names.
• derived from the Latin ablative -īs.
• derived from Spanish -ez.

Furthermore, it is not certain that the patronymic suffix is identical to the one found in toponyms.

• Hyphenation: -iz

-iz (no longer productive)

1. Toponymic suffix.
2. Patronymic suffix found in surnames.

   ‎Orti + ‎-iz → ‎Ortiz (“son of Orti”)

• R. L. Trask (2008), “-iz”, in Max W. Wheeler, editor, Etymological Dictionary of Basque‎^[1], University of Sussex

-iz

1. found on plural nouns with the meaning of people of a country.

   Breizhiz: Bretons, people of Britanny.

-iz

1. act on it by heat

• The Ojibwe People's Dictionary