cuneiform (adj.) Look up cuneiform at Dictionary.com
1670s, "wedge shaped," from French cunéiforme (16c.), from Latin cuneus "a wedge, wedge-shaped thing," of unknown origin, + French -forme (see form (n.)). Applied to characters in ancient Middle Eastern inscriptions made with wedge-shaped writing tools; first used in this sense by German physician and traveller Engelbert Kämpfer (1681-1716); in English from 1818. As a noun from 1862.