The adjective G. saig “hungry” appeared in the Gnomish Lexicon of the 1910s (GL/66), clearly based on the early root ᴱ√SAẎA “hunger” which was mostly used in combination with -kǝ (QL/82). This word reappeared in Early Noldorin Word-lists, but was revised to ᴱN. haib (PE13/146, 153). Here the final b probably represents a shift of the ancient form to ✱saik-wā, while the initial h reflects the tendency of initial *s* to become *h* in the Noldorin of the 1920s (HIPTN/§4.1.1).
Neo-Sindarin: For purposes of Neo-Sindarin, I use ᴺS. saeb “hungry” as an update of the 1920s form to better fit Sindarin phonology. Fiona Jallings first coined this neologism based on ᴱQ. saiqa (FJNS/352).
An adjective appearing as ᴱQ. saiqa “hungry” in the Qenya Lexicon under the early root ᴱ√SAẎA (QL/82). In Early Noldorin Word-lists of the 1920s, the Qenya word for “hungry” was instead saisa, though its Early Noldorin equivalent ᴱQ. haib seems to indicate primitive ✱saikwā (PE13/146).
Neo-Quenya: For purposes of Neo-Quenya I would retain the adjective ᴺQ. saiqua “hungry” based on a Neo-Root ᴺ√SAYAK, but only as an archaic word so I could justify the retention of related words like ᴺS. saeb “hungry”. For normal speech I would assume Q. maita is the ordinary word for “hungry” (VT39/11).