Where does “aullador” come from?

aullador (Spanish) comes from Spanish -dor, from Latin -tor, from Proto-Italic -tōr, from Proto-Indo-European -tōr, from Proto-Indo-European -tor-s.

aullador (Spanish): howler

Definitions

Step	Language	Word	Meaning
1	Spanish	-dor	Forms nouns and adjectives from verbs. The vowel...
2	Latin	-tor	-er
3	Proto-Italic	-tōr	Forms agent nouns to verb stems
4	Proto-Indo-European	-tōr	Derives agent nouns from verbs, denoting someone...
5	Proto-Indo-European	-tor-s	—