Sindarin 

ertha-

verb. to unite

A verb implied by aderthad “reuniting” (S/113), probably a causative form of √ER “one”, hence = “✱make one”.

Conceptual Development: A similar verb G. ertha- or eretha- appeared in the Gnomish Lexicon of the 1910s, but with a different meaning: “to isolate; [by extension] rob, deprive” (GL/33). This earlier verb was likely based on G. ereth “solitude” (GL/32).

ertha-

verb. to unite

Sindarin [Aderthad S/409] Group: SINDICT. Published by

ertha

unite

#ertha- (i ertha, in erthar). Isolated from the gerund #erthad (itself isolated from aderthad "reunion").

ertha

unite

(i ertha, in erthar). Isolated from the gerund #erthad (itself isolated from aderthad "reunion").

Quenya 

erta-

verb. to unite

A neologism coined by David Salo in PPQ (PPQ) from the early 2000s, inspired by S. ertha- “unite”.

Quenya Group: Eldamo - neologism/reconstructions. Published by

Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!

Gnomish

er(e)tha-

verb. to isolate; to rob, deprive