Briefly, it's a theme week: three-letter words.
alp (ALP) - n., a high mountain.
Back-formation from the Alps, the mountain range in Europe, called Alpes in Latin, origin uncertain -- possibly from Latin albus, white, possibly a local Celtic language's name (possibly ultimately from Proto-Indo-European *hâ‚‚el-, grow/rise), possibly from a local non-IE language.
---L.
alp (ALP) - n., a high mountain.
Back-formation from the Alps, the mountain range in Europe, called Alpes in Latin, origin uncertain -- possibly from Latin albus, white, possibly a local Celtic language's name (possibly ultimately from Proto-Indo-European *hâ‚‚el-, grow/rise), possibly from a local non-IE language.
---L.