Obsolete form of erratic.

plural of errand

Third-person singular simple present indicative form of errand

simple past tense and past participle of err

simple past tense and past participle of er

the state of being in error; fallibility / holding the view that the Pope is not infallible

(geometry, geomagnetism) The combination of variation and deviation which is the horizontal angle between the direction indicated by a magnetic compass and true north.

plural of knight-errant

A knight in a medieval romance who wanders in search of adventure and opportunities to prove his chivalry. / A person who displays an adventurous or a quixotic spirit.

In an erratic manner; unsteadily or randomly, unpredictably.