1
to be loath to;to balk at (doing);to grudge (doing);to spare (oneself);to be weary of;to shun;to dislike (an activity, an environment);to hate (an activity)
あの青年は大金を得るため一生懸命働くのをいとわなかった。
The young man was extremely money hungry.
2
to take (good) care of