Where does “castagnacciaio” come from?

castagnacciaio (Italian) comes from Italian -aio, from Latin -ārius, from Proto-Italic *-āzios — Forms relational adjectives to nouns (and rarely numerals).

castagnacciaio (Italian): one who sells castagnaccio

Definitions

  1. one who sells castagnaccio

Ancestry of “castagnacciaio”, step by step

StepLanguageWordMeaning
1Italian-aioAdded to nouns to form agent nouns; Added to...
2Latin-āriuser
3Proto-Italic*-āziosForms relational adjectives to nouns (and rarely numerals)
Every word from Proto-Italic *-āzios →Every word from Latin -ārius →Every word from Italian -aio →