alouette (n.)

"skylark," from French alouette, diminutive of Old French aloe, from Latin alauda "the lark" (source of Italian aloda, Spanish alondra, Provençal alauza), which is said to be from Gaulish (Celtic). The primitive form has vanished in French, leaving the diminutive to serve in its place. The popular song dates from the later 19c.