Where does “saludar” come from?

saludar (Spanish) comes from Old Spanish saludar, from Latin salūtō, from Latin -ō, from Proto-Indo-European -ō — Derives nouns from roots.

saludar (Spanish): to greet; to wave

Definitions

Step	Language	Word	Meaning
1	Old Spanish	saludar	—
2	Latin	salūtō	to preserve, keep safe
3	Latin	-ō	suffixed to nouns or adjectives. Originally a-stem nouns. Later extended to nouns with other stems. Forms regular first-conjugation verbs
4	Proto-Indo-European	-ō	Derives nouns from roots