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