Lantern
Middle English: from Old French lanterne, from Latin lanterna, from Greek lamptēr ‘torch, lamp’, from lampein ‘to shine’.
wiktionary
Middle English lanterne (13th century), via Old French lanterne from Latin lanterna(“lantern”), itself a corruption of Ancient Greek λαμπτήρ(lamptḗr, “torch”) (see lamp, λάμπω(lámpō)) by influence of Latin lucerna(“lamp”). The spelling lanthorn was current during the 16th to 19th centuries and originates with a folk etymology associating the word with the use of horn as translucent cover. For the verb, compare French lanterner to hang at the lamppost.
etymonline
lantern (n.)
mid-13c., from Old French lanterne "lamp, lantern, light" (12c.), from Latin lanterna "lantern, lamp, torch," altered (by influence of Latin lucerna "lamp") from Greek lampter "torch, beacon fire," from lampein "to shine, give light, be brilliant" (from PIE root *lap- "to light, burn;" see lamp).
Variant lanthorn (16c.-19c.) was folk etymology based on the common use of horn as a translucent cover. Lantern-jaws "hollow, long cheeks" is from a resemblance noted at least since mid-14c.; Johnson suggests the idea is "a thin visage, such as if a candle were burning in the mouth might transmit the light."
