Whit, Wit, and Pit are all surnames that end with "it."
Iguana
It is not so much words that end in cester but place names. In England, some place names that end in cester are Cirencester, Gloucester, Leicester, Rochester and Worcester.
Animal names that end with the letter o:armadillobuffalocuckoogeckokangaroo
Oreo,
Penny, Jenny.
Lakeworth
Malcolm, Miram.
assa
Carol
lana
Aj
Some objects that end with the letter O are:ammoavocadobamboobanjobistrobuffalocameocellocockatoocuckoodingodominoembryofoliofrescogauchogazebogumboherohippohoboigloojalapenokangarookazoolassolimomangomemonachoOreopalmettopatiopesopestophotopianopiccolopimentopintopistachioPlutoradiorhinosilotacotarotobaccotuxedovideovolcanoyo yozoo