Is it ensure, insure, or assure?
c.1300, "small seagoing vessel with sails," from Old French barge, Old Provençal barca, from Medieval Latin barga, perhaps from Celtic, or perhaps from Latin *barica, from Greek baris "Egyptian boat," from Coptic bari "small boat." Meaning "flat-bottomed freight boat" dates from late 15c.
"to journey by barge," 1590s, from barge (n.). The form barge into and the sense "crash heavily into," in reference to the rough handling of barges, dates from 1830s, American English. Related: Barged; barging.