royal
‘kingly’
Lexical development traced from the Tamil root:
E. roall, royl, roiall, royall < O.F. roial ‘royal, regal; splendid, magnificent’ < Mod.F. royal < Lat. regalis ‘of a king, kingly, royal, regal’ < rex < regis ‘king’ < roy < reg- < Tamil aracaṉ