Where does “niñera” come from?

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

niñera (Spanish): babysitter

Definitions

babysitter

Ancestry of “niñera”, step by step

Step	Language	Word	Meaning
1	Spanish	-era	feminine singular of -ero; indicates a place or...
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 →