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An ancient Celtic language of northeast Italy and southern Switzerland, perhaps a dialect of Gaulish, known from inscriptions dated from the third century bc.
[From Latin Lēpontiī, a people of Cisalpine Gaul.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
a Celtic language of ancient N Italy and S Switzerland, attested in inscriptions of the 4th to 1st centuries b.c.
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