noun, masculine/ˈfondo/plural: fondos
bottom; back; fund, funding; ground (bottom of a body of water); ground, basis, foundation
“al fondo” — at the back
Inherited from Old Spanish, from Latin fundus PIE word *bʰudʰmḗn The preservation of the initial older 'f' in this word may be to distinguish it from the doublet hondo, which became an adjective and continued its phonetic evolution as expected. Also the doublet of fundo, a later borrowing.