A search on the G site gave this Wiki entry as the closest connection, which would make sense, given Lukas' mythic/Scriptural orientation.

"Anakim are the descendants of Anak, and dwelt in the south of Canaan, in the neighbourhood of Hebron. In the days of Abraham, they inhabited the region afterwards known as Edom and Moab, east of the Jordan river. They are mentioned during the report of the spies about the inhabitants of the land of Canaan. The book of Joshua states that Joshua finally expelled them from the land, excepting a remnant that found a refuge in the cities of Gaza, Gath, and Ashdod. The Philistine giant Goliath, whom David, or Elhanan,[13] later encountered, was supposedly a descendant of the Anakim.

“The land, through which we have gone to spy it out, is a land that devours its inhabitants, and all the people that we saw in it are of great height. And there we saw the Nephilim (the sons of Anak, who come from the Nephilim), and we seemed to ourselves like grasshoppers, and so we seemed to them.[14] ”

The Sumerians called their gods the Anunaki; according to a Midrash [2], Abraham was the son of an idol manufacturer in the Sumerian city of Ur, and so could reasonably be expected to have known about these gods[citation needed]. Whether via the knowledge of a historical Abraham, or via folk memory that passed down to the Yahwist, the words Anak and its plural (Anakim) could simply be corrupted versions of Anunaki; this would equate the Nephilim with the Sumerian demigods such as Gilgamesh.

Note that it is more commonly suggested by traditional Jewish sources (such as the Midrash) that the spies saw large and powerful inhabitants in Canaan and because of their own fears, cowardice, and inadequate faith in Yahweh, saw themselves as grasshoppers in the eyes of the Canaanites, whether they were actual 'giants' or not."

Nothing comes up for AnakiN.