Is it ensure, insure, or assure?
Old English scofl, sceofol "shovel," related to scufan (see shove (v.)), from Proto-Germanic *skublo (cf. Old Saxon skufla, Swedish skovel, Middle Low German schufle, Middle Dutch shuffel, Dutch schoffel, Old High German scuvala, German Schaufel). Shovel-ready, with reference to construction projects, is attested by 2006.
mid-15c., from shovel (n.). Related: Shoveled; shoveling. Cf. German schaufeln, verb from noun.