ýneg

Sindarin numbers
min = one tâd = two nêl, neleð = three canad = four leben = five eneg = six odog = seven toloth = eight neder = nine caer or pae = ten minib = eleven ýneg = twelve

ýneg is the number twelve (12, XII) in Sindarin. While the Elves had a duodecimal system, Men did not, and didn't use this term.

The word itself is formed out of an earlier *yuneke, meaning, "two sixes".