Sindarin 

araglas

masculine name. *Royal-joy

The 6th chieftain of the Dúnedain (LotR/1038). The initial element of his name is the prefix ar(a)- “noble” and its final element might be [N.] glass “joy” (as suggested by David Salo, GS/341).

Conceptual Development: In the draft of Appendix A of the Lord of the Rings, his name was first given as Arallas, revised to Araglas (PM/211).

Sindarin [LotRI/Araglas; PMI/Araglas] Group: Eldamo. Published by

Araglas

noun. royal joy

aran (“king”) + glass (“joy”)

Sindarin [Tolkiendil] Group: Tolkiendil Compound Sindarin Names. Published by