Er"ra*ble (?), a. Liable to error; fallible.
Er"ra*ble*ness, n. Liability to error. Dr. H. More.
Er"ra*bund (?), a. [L. errabundus.] Erratic. "Errabund guesses." Southey.
Er"ran*cy (?), n. [L. errantia.] A wandering; state of being in error.
Er"rand (?), n. [OE. erende, erande, message, business, AS. ærende, ærend; akin to OS. arundi, OHG. arunti, Icel. eyrendi, örendi, erendi, Sw. ärende, Dan. ærende; perh. akin to AS. earu swift, Icel. örr, and to L. oriri to rise, E. orient.] A special business intrusted to a messenger; something to be told or done by one sent somewhere for the purpose; often, a verbal message; a commission; as, the servant was sent on an errand; to do an errand. Also, one's purpose in going anywhere.