D-W-R – ‘cyclical periods’
Several ideas are attached to the root דור which forms the basis of this word. By the first, should be understood a circle, an orb; by the second, any circular habitation whatever, a sphere. If one relates the first of these ideas to a temporal duration, then the word דור signifies a cyclic period, an age, a century, a generation. If by the second, one understands an inhabited space, then the same word designates a city, a world, a universe; for I must say, en passant, that in ancient times, every duration, like every habitation, was conceived under the picture of a circle…the Greek words πδλις or πολειν, the Latin words orbis and urbs, are unimpeachable proofs. (The Hebraic Tongue Restored, p. 187-188)
1752. duwr, dure; a primitive root; properly, to gyrate (or move in a circle), i.e. to remain:—dwell.
1753. duwr, dure; (Aramaic) corresponding to 1752; to reside:—dwell.
1754. duwr, dure; from 1752; a circle, ball or pile:—ball, turn, round about.
1755. dowr, dore; or (shortened) dor, dore; from 1752; properly, a revolution of time, i.e. an age or generation; also a dwelling:—age, x evermore, generation, (n-)ever, posterity.