harden
build up
confirm
instrengthen
corroborate
restrengthen
strengthenable
fresh
thicken
freshen
reassert
sinewed
reinforce
reenforce
prestrengthen
brace up
indurate
bolster
strengthen
bolster up
inbuild
build
ramp up
work up
tonify
strengthening
fortify
get up
beef up
inspirit
shore up
muscle up
backstop
reinforceability
forharden
strengtheningly
reboost
plus
get better
buff up
better
boost
with blackjack and hookers
upboost
amend
embetter
invigorative
reinforceable
strengthy
back
improvable
reach
accomplish
achieve
attain
boostable
aliment
fortified
cleat
flex
pep up
roborant
horsepower
potent
supplemental
invigorate
progress
go from strength to strength
reinvigorate
gain on
pull up
consolidate
supercharged
reaffirm
enhancingly
rebolster
vitalise
strongful
brace
corroboratory
engolden
robust
enrich
reinforcible
strengthened
potentiate
reinforced