Sheet″ an″chor (?). [OE. scheten to shoot, AS. sceótan; cf. OE. shoot anchor. See Shoot, v. t.] 1. (Naut.) A large anchor stowed on shores outside the waist of a vessel; — called also waist anchor. See the Note under Anchor.
2. Anything regarded as a sure support or dependence in danger; the best hope or refuge.