proponer
/pɾopoˈneɾ/ · B1 · verb
to propose, to propound, to put forth, to put forward, to bring forward, to suggest
pro + poner = put forward: to propose is to put an idea forward
From Latin proponere: pro (forward) + ponere (to put). Spanish poner still means to put, so proponer is literally to put forward. It conjugates like poner: propongo, propuse, propuesto.