A root in The Etymologies of the 1930s glossed “fear” (Ety/GÁYAS). One of its derivatives, N. gaer “dreadful” (< ᴹ✶gaisrā), was given a new etymology in the Quendi and Eldar essay of 1959-60, where S. gaer “awful, fearful” was derived from ✶gairā (WJ/400). However, it is conceivable that √GAYAS could have survived as an extension of the later root √GAY “astound, make aghast”.
Middle Primitive Elvish
pan
root. place, set, fix in place (especially of wood)
panda
?. panda
panō
noun. plank, fixed board (especially in a floor)
pantā
adjective. open
patnā
adjective. wide
kwantā Reconstructed
adjective. full
a-
prefix. complete
ed(er)
root. open
gayas
root. fear
kwǣnē
noun. small gull, petrel
swesta-
verb. to puff
A deleted root in The Etymologies of the 1930s with the gloss “open” and the forms √ED and extended √EDÉR, but it had no derivatives (EtyAC/ED).