ἄλσος

Etymology
Traditionally derived from, the same root of 🇨🇬, , and 🇨🇬. On the other hand, Beekes connects the word with the proper noun, the name of a sacred enclosure dedicated to Zeus in Olympia; on this basis one could reconstruct the noun as *alti̯os. Furnée accepts the equation, but interprets it in the context of other instances of an interchange of dental and sibilant in words, like  and.

Noun

 * 1) grove, especially a sacred one
 * 2)  any hallowed precinct, even one without trees