Examples from the Web for aboriginally
Barrett says (p. 271) this was an aboriginally Wappo town and took the lead in the war with the Pomo.
It appears clear that aboriginally there were two semipermanent sites and a number of temporary settlements.
Aboriginally, as with most northern nations, warfare was the normal state of these people.The Works of Hubert Howe Bancroft, Volume 1|Hubert Howe Bancroft
Stewart makes it quite clear that aboriginally the Kacia had no permanent settlements on the coast itself.
British Dictionary definitions for aboriginally (1 of 2)
British Dictionary definitions for aboriginally (2 of 2)
Word Origin and History for aboriginally
1660s, "first, earliest," especially in reference to inhabitants of lands colonized by Europeans, from aborigines (see aborigine) + -al (1); specific Australian sense is from 1820. The noun is attested from 1767. Related: Aboriginally.