According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern --N-A-HE. That is, eight letter words with 3rd letter N and 5th letter A and 7th letter H and 8th letter E. In alphabetical order, they are:

rondache

sunbathe

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern -O-DA-H-. That is, eight letter words with 2nd letter O and 4th letter D and 5th letter A and 7th letter H. In alphabetical order, they are:

rondache

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 6 words with the pattern -OND---E. That is, eight letter words with 2nd letter O and 3rd letter N and 4th letter D and 8th letter E. In alphabetical order, they are:

bondable

condense

mondaine

nondance

rondache

rondelle

The following list was acquired from word navigator. ache affiche apache attache avalanche babiche babouche babuche backache barouche basoche bellyache berdache bobeche boche bosche bouche bretasche brioche broche cache caleche caliche capuche caroche cartouche ceviche cleche cliche cloche conche corniche couche creche croche cynanche debouche demarche depeche douche earache eatche ebauche eche ecorche escarmouche farouche fetiche fiche fitche fleche galoche ganache gauche gouache gramoche guilloche headache heartache huarache huisache kolache louche mache manche mastiche menarche miche microfiche moriche moustache mustache nache niche obeche oche orache oricalche owche pabouche panache panoche parfleche pastiche penoche penuche pistache planche postiche potche potiche potlache preheadache proseuche psyche quiche quinche rache recherche relache revanche rondache rotche rouche ruche sabretache sancoche scaramouche schottische seiche seviche soroche soutache stomachache subniche synecdoche tache tedesche toothache touche tranche transmanche troche tusche ultrafiche