That errs in senses of the verb: †wandering, roaming (obsolete); deviating from the right or intended course, missing the mark; that is in error, or…

Mistaken, deceived, deluded; betrayed into error; imprudent, hasty, or rash in action. Cf. oversee, v. 7. Now archaic and rare.

Going astray in thought, belief, or conduct; going wrong, erring; wayward, wild.

out of one's book (also books): out of one's reckoning, mistaken. Obsolete.

That strays, in the senses of the verb. figurative.

That faults. That commits faults.

Deluded, imposed upon, misled, mistaken, etc.: see the verb.

Of a person, his faculties, etc.. Astray from the truth, mistaken. not to seek: not ignorant, well aware (that). Obsolete.

Stumbling, erring, sinning.

Of a person: mistaken, in error.

That misunderstands or misconceives; erring. Now rare.

Bad or incorrect in method. Obsolete. rare.

Erring in opinion, conduct, etc.; deviating from the correct standard.

Solecistic.

Of persons, etc.. Judging, believing, or acting contrary to the facts of the case; incorrect in judgement, assertion, or action; mistaken, in error.

Of the nature of or involving solecism. In thought or conduct.