césped

Césped is masculine. While it does derive from Latin "caespis" (turf or sod), the etymology and gender explanation require correction. The Latin nominative "caespis" was feminine, but Spanish inherited the word through a different Latin form or underwent reanalysis. However, the primary reason for masculine gender in Spanish is likely due to analogy with other masculine nouns ending in consonants (like "árbol," "papel"), which is a common pattern in Spanish gender assignment. The word's final consonant structure made it susceptible to being classified as masculine despite its feminine Latin origins.