1630s; see labyrinth + -ine (1). Figurative use by 1831. Earlier adjective forms were labyrinthian/labyrinthean (1580s), labyrinthial (1540s), labyrinthical (1620s), labyrinthic (1640s).
labyrinthine deafness
a labyrinthine network of tortuous footpaths
Labrador
labret
labrum
laburnum
labyrinth
labyrinthine
lac
lace
Lacedaemonian
laceman
lacerate
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