Sindarin 

cevemphast

noun. earth quake

A neologism for “earthquake” created by Paul Strack in 2021 specifically for Eldamo, inspired by Gnomish G. maragwast from the 1910s but with its elements updated to S. ceven “earth” and ᴺS. past “shaking”. Another possibility would be cevemmast if it were a more ancient compound with medial mph > mm, but I think the elements would remain transparent and the word would be reformed to back to cevemphast.

Cognates

Elements

WordGloss
cevenEarth, earth; Earth”
past“shaking”
Sindarin Group: Eldamo - neologism/reconstructions. Published by