Icelandick

He was well verſed in the hiſtory of the North; and compiled ſeveral annals, which, though now loſt, furnished materials for the chronicles for the earlieſt Icelandick authors, whoſe works are at preſent extant.

Source: wiktionary

In the diſtrict of Swambiſter, or Suenobiſter, are the ruins of an ancient tower, of a circular form, and about 180 feet in circumference; and once, probably, the reſidence of Sueno Boerſtrop, who was killed by the famous Sueno Aſteriſæ, during a Chriſtmas entertainment in this pariſh, at the houſe of Paul, one of the Norwegian Counts of Orkney; of which a very particular account is given by the Icelandick hiſtorian of Saga Orcadenſis.

Source: wiktionary

He has given us an appendix, consisting of three numbers, the first of which contains a historical view of the translation and different editions of the Icelandick scriptures, the second is a poem of thanks addressed by Sira Jon Thorlakson, the translator of Milton, to the British and foreign Bible Society, together with a Latin translation, and an English imitation; and the third is a disquisition on Icelandick poetry.

Source: wiktionary