lep ‧ re ‧ chaun /ˈleprəkɔːn, ˈleprɪkɔːn $ -kɑːn, -kɒːn/ BrE AmE noun [countable]
[ Date: 1600-1700 ; Language: Irish Gaelic ; Origin: leipreachan , from Middle Irish luchorpan 'small body' ]
an imaginary creature in the form of a little old man, in old Irish stories