[Thu.le] n [ME Tyle, fr. OE, fr. L Thule, Thyle, fr. Gk Thoule, Thyle] (bef. 12c): the northernmost part of the habitable ancient world
[2]Thu.le adj [Thule, Greenland] (1925): of, relating to, or being the culture existing in the arctic lands from Alaska to Greenland from about 500 a.d. to 1400 a.d.