Franco-youdaoicibaDictYouDict[Franco- 词源字典]
word-forming element meaning "French" or "the Franks," from Medieval Latin comb. form of Franci "the Franks" (see Frank), hence, by extension, "the French." Used from early 18c. in forming English compound words.[Franco- etymology, Franco- origin, 英语词源]
Francophile (adj.)youdaoicibaDictYouDict
"characterized by excessive fondness of France and the French," 1875, from Franco- + -phile. "A newspaper word" [OED]. Its opposite, Francophobe, is recorded from 1890 (implied in Francophobic; Francophobia is from 1862).
Francophone (adj.)youdaoicibaDictYouDict
1900, from Franco- "French" + -phone "-speaking."