pne responds in this
this entry to my last WotD with a bit about the joy of etymological doublets, wherein he muses on the possible existence of quadruplets. Well, having discovered that
jaunty derives from a sailors' pronunciation of French
gentil, I've now got a doozy:
gentle:
gentile:
genteel:
jaunty. And every one of them borrowed rather than inherited! The dates of first attestation, according to the OED, are respectively
1225, c1380, 1599, and 1662.