Aquatic
The Arabian was the first horse to jump seven feet in equine history.
Katie was seven when she got her first horse.
carrige
honesty is a seven letter word that begins with h
kangaroo?
diddled gagging
Parsnip
The trainer Harry Telford wanted the horse 'Phar Lap' to have a seven letter name because 4 of the former Melbourne Cup winners had seven letter names.
q (quarter)
Oh, brother.
absence
Examples of seven letter words with the first and sixth letter the same are:abysmalacrobatadmiralanagramarrivalarsenalcadencecollectcompactconductconnectconvictcorrectcrevicedegradedioxideearthenempowerepauletescapeefalsifyfortifygarbagegeologyhealthyidioticidyllicillicitinertiainhabitinheritinsulininteriminvalidkaraokelegiblelikablemacramenirvananothingoctagonopinionoutdoorovationperhapspreemptrapportrapturerectoryrequirerestorerevelryrhubarbrivalryrobberyrupturesarcasmsawdustselfishstylishsubsistsuccesssucrosesuggestsupposesurpasssynapsetaffetatermitethirstythriftytributetrinitytwelfthuranium