Where does “sandwicheira” come from?

sandwicheira (Galician) comes from Galician -eira, from Old Portuguese -eira, from Latin -āria, from Latin -ārius, from Proto-Italic *-āzios — Forms relational adjectives to nouns (and rarely numerals).

sandwicheira (Galician): pie iron, sandwich toaster

Definitions

pie iron, sandwich toaster

Ancestry of “sandwicheira”, step by step

Step	Language	Word	Meaning
1	Galician	-eira	forms names of plants from the fruits or vegetables they produce
2	Old Portuguese	-eira	—
3	Latin	-āria	used to form feminine counterparts of masculine agent nouns in
4	Latin	-ārius	er
5	Proto-Italic	*-āzios	Forms relational adjectives to nouns (and rarely numerals)

Every word from Proto-Italic *-āzios →Every word from Latin -ārius →Every word from Latin -āria →