1788, from Sanskrit raga-s "harmony, melody, mode in music," literally "color, mood," related to rajyati "it is dyed," from PIE *reg- (3) "to dye" (source also of Greek rhegos "blanket, rug").
raffle
Rafflesia
raft
rafter
rag
raga
ragamuffin
rag-bag
rag-doll
rage
ragged