Sindarin 

gir-

verb. to shudder

The Noldorin-style infinitive form giri “shudder” appeared in The Etymologies of the 1930s under from the root ᴹ√GIR “quiver, shudder” (Ety/GIR). Tolkien’s continued use of the noun girith “shudder” in names like Nen Girith “Shuddering Water” (S/220; WJ/151) implies that gir- “shudder” remained valid in Sindarin of the 1950s and 60s as well.

Sindarin [SA/girith] Group: Eldamo. Published by

gir

shudder

(verb) gir- (i **îr, i ngirir** = i ñirir)

gir

shudder

(i ’îr, i ngirir = i ñirir)