the.com/overrun
when the invaders outnumber the defenses and nobody planned for that
means to spread over and occupy a place in numbers greater than expected, or to exceed a limit, especially of time or cost.
from from old english ofer (over) plus rinnan (to run) — literally to run over something, first used of armies flooding conquered land before it drifted into budgets and blackberry bushes.
project overrunsaverage large it project runs 45 percent over budget
biological versioninvasive species overrun ecosystems lacking natural predators
military originoriginally described armies flooding captured territory
meeting senseone of few words for time and territory both
for instance
kudzu in the south — vine planted in 1930s now blankets 7 million acres
sydney opera house — budgeted at 7 million, finished at 102 million
cane toads australia — introduced 1935, now over 200 million strong
boston big dig — cost overrun from 2.8 billion to 14.6 billion