<span class="searchmatch">greift</span> <span class="searchmatch">zurück</span> inflection of zurückgreifen: third-person singular present second-person plural present plural imperative...
zurückgreifen (class 1 strong, third-person singular present <span class="searchmatch">greift</span> <span class="searchmatch">zurück</span>, past tense griff <span class="searchmatch">zurück</span>, past participle zurückgegriffen, auxiliary haben) to fall...