Overstrain

v. i.	1.	To strain one's self to excess. [imp. & p. p. Overstrained ; p. pr. & vb. n. Overstraining.]
v. t.	1.	To stretch or strain too much; as, to overstrain one's nerves.

Noun	1.	overstrain - too much strain
Verb	1.	overstrain - strain excessively; "He overextended himself when he accepted the additional assignment" Synonyms: overextend

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