overextend

[oh-ver-ik-stend]

verb (used with object)

to extend, reach, or expand beyond a proper, safe, or reasonable point: a company that overextended its credit to diversify.
to extend for too long a time: to overextend a stay.
to obligate (oneself) to more activities, work, etc., than one has time for or can accomplish well.

Origin of overextend

First recorded in 1935–40; over- + extend

Related formso·ver·ex·ten·sion

[oh-ver-ik-sten-shuh n] /ˌoʊ vər ɪkˈstɛn ʃən/, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Others would have America over-extend ourselves, confronting every evil that can be found abroad.
Obama Speech Looks Toward 2012
John Avlon
June 23, 2011

Word Origin and History for over-extend

"to take on too much" (work, debt, etc.), 1937, from over- + extend. Related: Over-extended; over-extending.