fem. proper name, an alteration or nativization of Cecilia. The popular plant name (late 16c.) is a corruption (by influence of the proper name) of Latin seselis, from Greek seselis, a foreign word, perhaps from Egyptian.
principal river in western Germany, from German Rhein, from Middle High German Rin, ultimately from Gaulish Renos, literally "that which flows" (from PIE root *rei- "to run, flow"). The spelling with -h- (also in Latin Rhenus; French Rhin) is from influence of the Greek form of the name, Rhenos.
1810, from Scottish Gaelic Gaidheal "member of the Gaelic race" (Irish, Scottish, Manx), corresponding to Old Irish Goidhel (compare Latin Gallus under Gallic, also see Galatians). The native name in both Ireland and Scotland; owing to the influence of Scottish writers Gael was used in English at first exclusively of Highland Scots.