valle

Valle is masculine. While it does derive from Latin "vallis" (which was feminine), the explanation of the regendering process is oversimplified and misleading. In reality, "valle" is masculine in Spanish primarily because the -e ending in Spanish typically signals masculine gender, and this pattern was generalized during the evolution from Latin to Spanish. However, the claim that "many Latin feminine nouns ending in '-is' were regendered as masculine" is not well-supported—this was not a systematic or predictable pattern. A clearer explanation is that "valle" became masculine by analogy with other masculine nouns ending in -e, though the etymology from Latin "vallis" is accurate.