rigor
devastate
digress
intermittent
incentive
succumb
indispensable
curtail
incorporate
squander
to upset deeply; overwhelm
to waste; spend or use foolishly
to turn aside, or stray, especially from the main topic in speaking or writing
to cut short or reduce
great hardship or difficulty; harshness; severity
to give in; stop resisting
necessary
to unite into a single whole; combine
something that moves one to take action or wok harder ; a motivation
starting and stopping from time to time; off-and-on
