A noun appearing as G. socthor “a drinking-horn” in the Gnomish Lexicon of the 1910s, a combination of G. sog- “drink” and G. târ “horn” (GL/68). It appeared below a variant G. sogli with the abstract noun suffix -li and above another variant sogridâr with both an abstract noun suffix and târ “horn”.

Neo-Sindarin: Since √SOK “drink” and [N.] sog- reappeared in Tolkien’s later writings, I would retain this noun but adapt it as ᴺS. soethor “drinking-horn” to reflect the later Sindarin vocalization of stops: okt > oith > oeth. I would further assume the second element was derived from ᴹ√TARAK “horn (of animals)” (Ety/TARÁK), perhaps -tārak > -taura > -thor where the final k vanished as it often did in longer words.