sitha

noun. fly

A word for “fly” in the Gnomish Lexicon of the 1910s (GL/68), perhaps related to the early root ᴱ√ITI “peck, bite (of flies), annoy” (QL/43).

sitha

adjective. this

sithaling

noun. fly snake, dragonfly

A word for “dragonfly” in the Gnomish Lexicon of the 1910s, a combination of G. sitha “fly” and ling “snake”, hence more literally “fly snake” (GL/68).

sithagong

noun. dragonfly

A word for “dragonfly” in the Gnomish Lexicon of the 1910s, a combination of G. sitha “fly” and gong a word for “goblin” (GL/41, 68). Tolkien said that the g survived in the compound because it was a new compound, indicating that soft mutation only applied to ancient compounds in Gnomish.

sithaloth

proper name. Pleiades (lit.) Fly-cluster