Reconstruction:Proto-Germanic/swammaz

Etymology
Seemingly related to 🇨🇬, with which it is traditionally derived from, but the Greek probably cannot be of inherited 🇨🇬 origin given its lack of the expected shift *s- > *h- (but see for a possible exception). Likely ultimately of or  origin. Such a substrate word may speculatively be related to the substrate sources of similar words in other languages, including 🇨🇬, /, 🇨🇬 and perhaps 🇨🇬 (whence 🇨🇬 and 🇨🇬), which cannot be reconciled in terms of Proto-Indo-European.

See also. This along with the variants (🇨🇬) and  (🇨🇬,, ) perhaps point to an original n-stem  ~.

Noun

 * 1) sponge
 * 2) fungus, mushroom
 * 3) swamp