Word: eolith
Word origin: late 19th century: from Greek ēōs ‘dawn’ + lithos ‘stone’.
Phonetic:
ˈiːə(ʊ)lɪθListen:
a roughly chipped flint found in Tertiary strata, originally thought to be an early artefact but probably of natural origin.
You can find a list of possible crossword clues for EOLITHS below.