Three Letter String

PIT

armpit
pittance
spitting
pita
spiteful

VER

VER

flivver
verify
covert
forever
vertical

ONT

ONT

container
pontoon
contrite
ontology
frontier

RIT

RIT

gritty
brittle
criteria
inheritance
merit

MER

MER

demerit
merry
chimera
merciless
camera

OTH

OTH

mother
otherwise
smother
brother
another

ALA

ALA

alabaster
calamity
maladjusted
alarming
gala

REN

Tilden! :jumpjacks

REN

trendy
serenity
children
horrendous
rendition

OMA

Gee, it's been a long time since anyone jumped up and down just for me. Unless you count my dog...

OMA

Omaha
comatose
Roman
homage
stomach

RIS

:laugh

RIS

christening
ferris
cherish
bristles
capris

EAU