harden
build up
corroborate
restrengthen
confirm
reassert
reinforce
reenforce
indurate
instrengthen
strengthenable
bolster
freshen
bolster up
fresh
sinewed
inbuild
strengtheningly
brace up
strengthening
work up
thicken
ramp up
build
beef up
fortify
strengthen
tonify
prestrengthen
get up
muscle up
inspirit
back
upboost
vitalise
flex
strengthy
invigorate
go from strength to strength
reinforceability
reinvigorate
horsepower
forharden
strengthfully
consolidate
strongful
cleat
hop up
fortified
potent
buttress
soup up
corroborant
shore up
hot up
gather steam
reboost
copperfasten
backstop
reinforceable
rugged
stour
indurated
supercharged
with blackjack and hookers
lower the boom
roborant
tough
aliment
strength
work out
substantiate
corroboratory
improvable
resiliate
boostable
tone up
potency
pep up
regenerate
robust
brace
muscular
steel
frim
heighten
revitalize
sustentative