Colbath rhymes with:
elizabeth, kroboth, sabbath, trembath, ardath, barath, behemoth, bernath, bismuth, conrath, cravath, dartmouth, demuth, donath, elizabeth, fagoth, faircloth, falmouth, fellmeth, goliath, gopinath, griffith, gwyneth, harvath, heimsoth, judith, kamrath, keinath, kollath, konrath, kossuth, kroboth, kunath, mammoth, massoth, milbrath, monmouth, morath, niemuth, plymouth, porath, portsmouth, pursueth, sabbath, samoth, schneckloth, spieth, suddath, sudduth, taketh, thirtieth, trembath, twentieth, unrath, vollrath, walrath, warmoth, weymouth, wilmoth, zenith
Colbath sounds like:
caillebotte, calfed, calvet, celebate, celibate, clapped, clavette, cleft, clevite, clift, clipped, clubbed, colavito