tunic (n.)

late 15c., from Middle French tunique (12c.) or directly from Latin tunica "undergarment worn by either sex" (source of Spanish tunica, Italian tonica, Old English tunece, Old High German tunihha), probably from a Semitic source (compare Hebrew kuttoneth "coat," Aramaic kittuna). Compare chitin, from a Greek name for a similar garment, also probably from a Semitic source.