Contracted for t'ashshuwr; the cedar tree or some other light elastic wood -- Ashurite.
see HEBREW t'ashshuwr
H839. ashur
or ashurim תְּאַשּׁוּר noun feminine box-tree (on form compare Sta§ 267) Isaiah 41:19; 60:13; Ezekiel 27:6 (compare above) a small evergreen tree about 20 feet high, growing on Lebanon, Bo TristrNat. Hist. Bib 339, so ᵑ7 ᵑ9 RV. (Others sherbîn, a species of cedar distinguished by the smallness of its cones and the upward direction of its branches, compare Thes Rob-Ges.)