Simple past tense and past participle of overstep.(verb)
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Use "overstepped" in a sentence
"Gee, how else would a spokesman for the real party of treason, the Republicans, answer a charge that this criminal administration has once again overstepped the law so badly that even their own Kangaroo Court is voting against them!"
"CNN, "White House: CBO 'overstepped' in its analysis" [...] lynn in NM"
"The point is not that therapists have occasionally "overstepped" themselves."