натрудиться v stresses
Gruzovik, inf.	have worked long enough
inf.	get tired; overstrain oneself; overwork oneself; tire oneself out; wear oneself out
Makarov.	become tired out (утомиться от работы); have worked long enough (вдоволь потрудиться)
натрудить v
gen.	overexert; wear out (a part of one’s body)
Gruzovik, inf.	overwork (pf of натруживать)
inf.	tire out