From propone +‎ -er.

proponer (plural proponers)

1. One who propones.

proponer

1. to suggest, propose

Borrowed from Latin prōpōnere (“to set forth; to propose; to declare”). By surface analysis, pro- +‎ poner. Cognate with English propose and propound.

• IPA^(key): /pɾopoˈneɾ/ [pɾo.poˈneɾ]
• Rhymes: -eɾ
• Syllabification: pro‧po‧ner

proponer (first-person singular present propongo, first-person singular preterite propuse, past participle propuesto)

1. to propose, to propound, to put forth, to put forward, to bring forward, to suggest
2. to nominate (e.g., a candidate, a representative)
3. (law) to move
4. (reflexive) to put one's mind to

   Lo hice casi sin proponérmelo

   I did it without really putting my mind to it

• “proponer”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025