Where does “recostar” come from?

recostar (Galician) comes from Galician -ar, from Galician ar, from Old Portuguese aar, from Old Portuguese aere, from Latin āēr, from Ancient Greek ἀήρ, from Ancient Greek auhḗr.

recostar (Galician): to lean something back

Definitions

to lean something back

Ancestry of “recostar”, step by step

Step	Language	Word	Meaning
1	Galician	-ar	-ar; Used to form first conjugation verbs...
2	Galician	ar	air; furthermore, in addition; never
3	Old Portuguese	aar	—
4	Old Portuguese	aere	—
5	Latin	āēr	air
6	Ancient Greek	ἀήρ	mist; air; wind
7	Ancient Greek	auhḗr	—

Every word from Ancient Greek auhḗr →Every word from Ancient Greek ἀήρ →Every word from Latin āēr →