Is it farther or further?
"act of frustrating," 1550s, from Latin frustrationem (nominative frustratio) "a deception, a disappointment," noun of action from past participle stem of frustrari (see frustrate). Earlier (mid-15c.) with a sense of "nullification."
frustration frus·tra·tion (frŭ-strā'shən)
The condition that results when an impulse or an action is thwarted by an external or an internal force.
The blocking or thwarting of an impulse, purpose, or action.