The 9th chieftain of the Dúnedain (LotR/1038). The initial element of his name is the prefix ar(a)- “noble”. Its final element might be the lenited form vorn of morn “black” or ✱born “(stead)fast”, also seen in Baravorn (as suggested by David Salo, GS/342).
Sindarin
Aravorn
noun. black king
aravorn
masculine name. Aravorn
Elements
Word Gloss ar(a)- “noble, royal, high” morn “black, dark; night”
ara (prefix “high, noble, royal”) + morn (“black”)