-tig

(Îngilîzî)

-ty; used to form numerals denoting multiples of ten

Etîmolojî (Îngilîzî)

Ji Middle Dutch mîras hatiye girtin: -tech

Ji Old Dutch mîras hatiye girtin: *-tig

In summary

From Middle Dutch -tech, -tich, from Old Dutch *-tig, from Proto-Germanic *tigiwiz, plural of *teguz (“group of ten”).