this is what i found pure. apparently they were just men.
Anakim
the descendants of Anak (Josh. 11:21; Num. 13:33; Deut. 9:2). They dwelt in the south of Palestine, in the neighbourhood of Hebron (Gen. 23:2; Josh. 15:13). In the days of Abraham (Gen. 14:5, 6) they inhabited the region afterwards known as Edom and Moab, east of the Jordan. They were probably a remnant of the original inhabitants of Palestine before the Canaanites, a Cuxxxxe tribe from Babel, and of the same race as the Phoenicians and the Egyptian shepherd kings. Their formidable warlike appearance, as described by the spies sent to search the land, filled the Israelites with terror. They seem to have identified them with the Nephilim, the "giants" (Gen. 6:4; Num. 13:33) of the antediluvian age. There were various tribes of Anakim (Josh. 15:14). Joshua finally expelled them from the land, except a remnant that found a refuge in the cities of Gaza, Gath, and Ashdod (Josh. 11:22). The Philistine giants whom David encountered (2 Sam. 21:15-22) were descendants of the Anakim. (See GIANTS ?T0001474.)
Giants
(1.) Heb. nephilim, meaning "violent" or "causing to fall" (Gen. 6:4). These were the violent tyrants of those days, those who fell upon others. The word may also be derived from a root signifying "wonder," and hence "monsters" or "prodigies." In Num. 13:33 this name is given to a Canaanitish tribe, a race of large stature, "the sons of Anak." The Revised Version, in these passages, simply transliterates the original, and reads "Nephilim."
(2.) Heb. rephaim, a race of giants (Deut. 3:11) who lived on the east of Jordan, from whom Og was descended. They were probably the original inhabitants of the land before the immigration of the Canaanites. They were conquered by Chedorlaomer (Gen. 14:5), and their territories were promised as a possession to Abraham (15:20). The Anakim, Zuzim, and Emim were branches of this stock.
In Job 26:5 (R.V., "they that are deceased;" marg., "the shades," the "Rephaim") and Isa. 14:9 this Hebrew word is rendered (A.V.) "dead." It means here "the shades," the departed spirits in Sheol. In Sam. 21:16, 18, 20, 33, "the giant" is (A.V.) the rendering of the singular form _ha raphah_, which may possibly be the name of the father of the four giants referred to here, or of the founder of the Rephaim. The Vulgate here reads "Arapha," whence Milton (in Samson Agonistes) has borrowed the name "Harapha." (See also 1 Chron. 20:5, 6, 8; Deut. 2:11, 20; 3:13; Josh. 15:8, etc., where the word is similarly rendered "giant.") It is rendered "dead" in (A.V.) Ps. 88:10; Prov. 2:18; 9:18; 21:16: in all these places the Revised Version marg. has "the shades." (See also Isa. 26:14.)
(3.) Heb. 'Anakim (Deut. 2:10, 11, 21; Josh. 11:21, 22; 14:12, 15; called "sons of Anak," Num. 13:33; "children of Anak," 13:22; Josh. 15:14), a nomad race of giants descended from Arba (Josh. 14:15), the father of Anak, that dwelt in the south of Palestine near Hebron (Gen. 23:2; Josh. 15:13). They were a Cuxxxxe tribe of the same race as the Philistines and the Egyptian shepherd kings. David on several occasions encountered them (2 Sam. 21:15-22). From this race sprung Goliath (1 Sam. 17:4).
(4.) Heb. 'emin, a warlike tribe of the ancient Canaanites. They were "great, and many, and tall, as the Anakims" (Gen. 14:5; Deut. 2:10, 11).
(5.) Heb. Zamzummim (q.v.), Deut. 2:20 so called by the Amorites.
(6.) Heb. gibbor (Job 16:14), a mighty one, i.e., a champion or hero. In its plural form (gibborim) it is rendered "mighty men" (2 Sam. 23:8-39; 1 Kings 1:8; 1 Chr. 11:9-47; 29:24.) The band of six hundred whom David gathered around him when he was a fugitive were so designated. They were divided into three divisions of two hundred each, and thirty divisions of twenty each. The captians of the thirty divisions were called "the thirty," the captains of the two hundred "the three," and the captain over the whole was called "chief among the captains" (2 Sam. 23:
. The sons born of the marriages mentioned in Gen. 6:4 are also called by this Hebrew name.
Nephilim
(Gen. 6:4; Num. 13:33, R.V.), giants, the Hebrew word left untranslated by the Revisers, the name of one of the Canaanitish tribes. The Revisers have, however, translated the Hebrew gibborim, in Gen. 6:4, "mighty men."
Rephaim
lofty men; giants, (Gen. 14:5; 2 Sam. 21:16, 18, marg. A.V., Rapha, marg. R.V., Raphah; Deut. 3:13, R.V.; A.V., "giants"). The aborigines of Palestine, afterwards conquered and dispossessed by the Canaanite tribes, are classed under this general title. They were known to the Moabites as Emim, i.e., "fearful", (Deut. 2:11), and to the Ammonites as Zamzummim. Some of them found refuge among the Philistines, and were still existing in the days of David. We know nothing of their origin. They were not necessarily connected with the "giants" (R.V., "Nephilim") of Gen. 6:4. (See GIANTS ?T0001474.)
