Where does “tontería” come from?

tontería (Spanish) comes from Spanish -ería, from Latin -āria, from Latin -ārius, from Proto-Italic *-āzios — Forms relational adjectives to nouns (and rarely numerals).

tontería (Spanish): something that is dumb; something of little...

Definitions

something that is dumb; something of little...

Ancestry of “tontería”, step by step

Step	Language	Word	Meaning
1	Spanish	-ería	Turns a noun into a store or restaurant that...
2	Latin	-āria	used to form feminine counterparts of masculine agent nouns in
3	Latin	-ārius	er
4	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 →