Here's what rhymes with pathlength.
Words that almost rhyme with pathlength
lens tenth sense hence dense thence whence fence stems tense tens cleanse gems hens pence pens theorems dens gens glens fens harems hems immense offence offense dispense halfpence defence defense expense intense commence incense suspense pretense morphemes twopence condemns condense sixpence recommence recompense commonsense frankincense length death health strength wealth breath depth breadth stealth neath twelfth shibboleth commonwealth