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