Concise Bible Dictionary:

Son of Arba, and his descendants. They were men of great stature, or giants. The Israelites who went to spy the land called themselves grasshoppers in comparison. They dwelt in southern Palestine, Hebron being especially mentioned as their city, which was given to Caleb after the Anakim had been destroyed by Joshua, except that a remnant escaped and retired to the cities of Gaza, Gath, and Ashdod (Num. 13:22,28,3322And they ascended by the south, and came unto Hebron; where Ahiman, Sheshai, and Talmai, the children of Anak, were. (Now Hebron was built seven years before Zoan in Egypt.) (Numbers 13:22)
28Nevertheless the people be strong that dwell in the land, and the cities are walled, and very great: and moreover we saw the children of Anak there. (Numbers 13:28)
33And there we saw the giants, the sons of Anak, which come of the giants: and we were in our own sight as grasshoppers, and so we were in their sight. (Numbers 13:33)
; Deut. 1:2828Whither shall we go up? our brethren have discouraged our heart, saying, The people is greater and taller than we; the cities are great and walled up to heaven; and moreover we have seen the sons of the Anakims there. (Deuteronomy 1:28); Deut. 2:10-11, 2110The Emims dwelt therein in times past, a people great, and many, and tall, as the Anakims; 11Which also were accounted giants, as the Anakims; but the Moabites call them Emims. (Deuteronomy 2:10‑11)
21A people great, and many, and tall, as the Anakims; but the Lord destroyed them before them; and they succeeded them, and dwelt in their stead: (Deuteronomy 2:21)
; Deut. 9:22A people great and tall, the children of the Anakims, whom thou knowest, and of whom thou hast heard say, Who can stand before the children of Anak! (Deuteronomy 9:2); Josh. 11:21-2221And at that time came Joshua, and cut off the Anakims from the mountains, from Hebron, from Debir, from Anab, and from all the mountains of Judah, and from all the mountains of Israel: Joshua destroyed them utterly with their cities. 22There was none of the Anakims left in the land of the children of Israel: only in Gaza, in Gath, and in Ashdod, there remained. (Joshua 11:21‑22); Josh. 14:12,1512Now therefore give me this mountain, whereof the Lord spake in that day; for thou heardest in that day how the Anakims were there, and that the cities were great and fenced: if so be the Lord will be with me, then I shall be able to drive them out, as the Lord said. (Joshua 14:12)
15And the name of Hebron before was Kirjath-arba; which Arba was a great man among the Anakims. And the land had rest from war. (Joshua 14:15)
; Josh. 15:13-1413And unto Caleb the son of Jephunneh he gave a part among the children of Judah, according to the commandment of the Lord to Joshua, even the city of Arba the father of Anak, which city is Hebron. 14And Caleb drove thence the three sons of Anak, Sheshai, and Ahiman, and Talmai, the children of Anak. (Joshua 15:13‑14); Josh. 21:1111And they gave them the city of Arba the father of Anak, which city is Hebron, in the hill country of Judah, with the suburbs thereof round about it. (Joshua 21:11); Judg. 1:2020And they gave Hebron unto Caleb, as Moses said: and he expelled thence the three sons of Anak. (Judges 1:20)).

Strong’s Dictionary of Hebrew Words:

the same as 6060; Anak, a Canaanite
KJV Usage:

Jackson’s Dictionary of Scripture Proper Names:

neck-chain long-necked

Potts’ Bible Proper Names:

Collar; ornament; necklace; length of neck:―a Canaanite [ANAKIMS], Num. 13:33. {Torques}