ᴺS. [G.] ^saetha- v. “to cause hunger” (Category: Hunger)
A verb appearing as G. saitha- or saictha- “to have hunger” in the Gnomish Lexicon of the 1910s “hungry” (GL/66), clearly based on the early root ᴱ√SAẎA “hunger” which was mostly used in combination with -kǝ (QL/82). The primitive form was probably *saiktā-. Tolkien said this verb was used both personally and impersonally.
Neo-Sindarin: For purposes of Neo-Sindarin, I adapt this verb as ᴺS. saetha- from the Neo-Root ᴺ√SAYAK, but I assume it is a causative verb meaning “to cause hunger”. I think this alternate meaning aligns better with Tolkien’s statement that the verb is “personal and also impersonal”. Hence “I am hungry” would be saetha annin “hunger is caused to me”.
References ✧ GL/66