Mammoth Uncensored Word List:
30 words ending with hs, 14 letters long

anemobiagraphs aneroidographs anthropomorphs centilliardths chemautotrophs chromatographs cinematographs fingerbreadths gynandromorphs hystricomorphs kinematographs lamellibranchs liebfraumilchs marsipobranchs nemathelminths opisthobranchs perennibranchs phonautographs platyhelminths pseudepigraphs quadrillionths quintillionths rechoreographs reflectographs rontgenographs sedecillionths septilliardths sextilliardths superstrengths twopenceworths