Rarot., Paum., ariki, id. Fakaafo, aliki, id. Mangar. akariki, id. Tong., eiki, id. Marqu., aiki, hakaiki, id. N. Zeal., ariki, chief and high-priest. Tah., arii, chief. Sam., alii, chief.
Sanskr., rij (for primitive Vedic rāj, to govern, Benfey), to stand or be firm, be strong; rāj, rājan, king. Goth., reiki, dominion; reiks, king, chief. Sax., rik, noble; rici, dominion, state. Icel., rikr, in compounds as ul-rikr, e-rikr. Swed., rik, rich; riki, kingdom.
Irish, righ, king; airigh, chief. Welsh, -rix, a frequent suffix in the names of nobles. Zend, raĝi, kingdom (A. Pictet). Lat., rex, king; rego, rectus." (Fornander)