Searching For Our Roots

Jig is to jiggle and gig is to giggle As wig is to wiggle and pig is to piggle But is civ to civil As drive is to drivel Scribe yields us scribble But does nib give us nibble Or quib give us quibble Or drib give us dribble Or rib give us ribald Dab yields us dabble But does rab give us rabble Or scrab give us Scrabble Does rid turn into riddle Or fid become fiddle Mud becomes muddle Bud does hud become huddle Or hub become Hubble Alas, these are unsolved Mysteries of the Universe