▁words ▁recorded ▁in ▁O ED ▁with ▁each ▁v owel ▁only ▁once , ▁and ▁in ▁order , ▁are ▁ab st em iously , ▁affect iously , ▁and ▁tra ged iously ▁( O ED ). ▁F rac ed in ously ▁and ▁gra ved in ously ▁( construct ed ▁from ▁ad ject ives ▁in ▁O ED ) ▁have ▁th ir teen ▁letters ; ▁G ad sp reci ously , ▁constructed ▁from ▁G ad sp reci ous ▁( in ▁O ED ), ▁has ▁four teen ▁letters . ▁Fac et iously ▁is ▁among ▁the ▁few ▁other ▁words ▁directly ▁att ested ▁in ▁O ED ▁with ▁single ▁occurr ences ▁of ▁all ▁six ▁v ow els ▁( count ing ▁y ▁as ▁a ▁v owel ). ▁ ▁The ▁longest ▁single ▁pal ind rom ic ▁word ▁in ▁English ▁is ▁rot av ator , ▁another ▁name ▁for ▁a ▁rot ary ▁till er ▁for ▁breaking ▁and ▁aer ating ▁soil . ▁ ▁Typ ed ▁words ▁▁ ▁The ▁longest ▁words ▁typ able ▁with ▁only ▁the ▁left ▁hand ▁using ▁conventional ▁hand ▁pla cement ▁on ▁a ▁Q W ER TY ▁keyboard ▁are ▁t ess era dec ades , ▁after cat ar act s , ▁and ▁the ▁more ▁common ▁but ▁sometimes ▁hy phen ated ▁swe ater d ress es . ▁Using ▁the ▁right ▁hand ▁alone , ▁the ▁longest ▁word ▁that ▁can ▁be ▁typed ▁is ▁j ohn ny - j ump - up , ▁or , ▁ex cluding ▁hy ph ens , ▁mon im ol im n ion ▁and ▁ph yl lo phy ll in . ▁ ▁The ▁longest ▁English ▁word