The Hurrian word kir(e)man
Word kir(e)man
Meaning eighteen, 18, 80, eighty
Notes/Remarks The etymology of this word is uncertain

Comments
Blazek (2010)

Other words that might be of interest
šu-kki ‘one’, šini ‘two’, kig(a) ‘3, three’, tumni ‘four, 4’, nariy(a) ‘5, five’, šeže ‘six, 6’, šindi ‘7, seven’, kira ‘8, eight’, tamri ‘9, nine’, kigman(i) ‘thirteen, 13’, kiški ‘third’