Sindarin 

theria-

verb. to be vigorous, flourish

Sindarin [PE17/187] Group: Eldamo. Published by

theria-

verb. be vigorous

v. be vigorous, flourish.

Sindarin [(PE17 Sindarin Corpus) PE17:187] < THAR vigour (only in S.). Group: Parma Eldalamberon 17 Sindarin Corpus. Published by