A noun appearing as G. suithlas “tea” in the Gnomish Lexicon of the 1910s, a combination of G. suith “drink” and G. lass “leaf” (GL/68).

Neo-Sindarin: The first element of this Gnomish word was derived from the early root ᴱ√SOKO “drink”, and there are signs that the root √SOK survived as late as 1960 (VT39/11). As such, I’d retain ᴺS. suithlas “tea, (lit.) drink-leaf” for purposes of Neo-Sindarin. However Steve/Ríon proposed a neologism ᴺS. yllas “tea” in the Vinyë Lambengolmor Discord Server (VLDS) on 2018-11-18, based on the assumption that √YUL “drink” replaced √SOK.