marathon
endurance contest
project
operation
projection
put one's hand to the plough
arrangement
effort
feasibleness
monumental
set to
pea patch
subserve
preparational
hard-fought
technical
stepping stone
step by step
wade
hard yards
institution
pull
stepwise
down to the short strokes
marathonic
venture
necessitarian
planification
constructionally
short strokes
put in the work
dead set
try on
toughness
formidability
task
enterprise
endeavour
programme
plan
struggle
schwebeablaut
endeavor
key
program
laboring oar
order of business
arduously
interstride
midpursuit