-dor

From Latin -tōrem, accusative of -tor, from Proto-Italic *-tōr, from Proto-Indo-European *-tōr < *-tor-s.

(after continuants, except [ɫ⁓l] and /ʎ/)

• (Balearic, Central) IPA^(key): /ˈ-ðo/
• (Valencian) IPA^(key): /ˈ-ðoɾ/

(elsewhere)

• (Balearic, Central) IPA^(key): /ˈ-do/
• (Valencian) IPA^(key): /ˈ-doɾ/

-dor m (plural -dors, feminine -dora)

1. Forms agent nouns and adjectives from verbs. The vowel of the infinitive is kept, i.e. -ador, -edor, -idor.
2. Forms agent nouns from another noun associated with the action.

   ‎llenya (“firewood”) + ‎-dor → ‎llenyador (“wood cutter”)

• -triu

• -er

From Latin -tōrem, accusative of -tor, from Proto-Italic *-tōr, from Proto-Indo-European *-tōr < *-tor-s.

-dor m (plural -dores, feminine -dora, feminine plural -doras)

1. forms agent nouns from verbs; -er, -or

• “-dor” in Dicionario da Real Academia Galega, Royal Galician Academy.

From Old Portuguese -dor, from Latin -tor (“-er”), from Proto-Italic *-tōr, from Proto-Indo-European *-tōr < *-tor-s.

• (Paulista) IPA^(key): /ˈdoɾ/, /ˈdoɹ/
• (South Brazil) IPA^(key): /ˈdoɾ/, /ˈdoɻ/

-dor m (feminine -dora, plural -dores, feminine plural -doras) (also, f -triz).

1. forms agent nouns from verbs; -er, -or

   ‎matar (“to kill”) + ‎-dor → ‎matador (“killer”)

• -ador, -edor, -idor

From Latin -tor, from Proto-Italic *-tōr, from Proto-Indo-European *-tōr < *-tor-s.

-dor m (feminine -dora, plural -dores, feminine plural -doras)

1. Forms nouns (usually agent nouns) and adjectives from verbs. The vowel before the suffix depends on the conjugation of the verb to which the suffix is added: -ar verbs use -ador (-adora), -er verbs use -edor (-edora), and -ir verbs use -idor (-idora).
2. Forms derivatives of other nouns.

   ‎leña (“firewood”) + ‎-dor → ‎leñador (“wood cutter”)

• “-dor” in Diccionario de la lengua española, Vigésima tercera edición, Real Academia Española, 2014.