_verum dicere, profiteri_—to speak the truth, admit the truth.
_omnia ad veritatem_[1] _dicere_—to be truthful in all one's statements.
_veritatis amans, diligens, studiosus_—truthful; veracious.
_a vero aversum esse_ (Catil. 3. 1. 29)—to be averse to truth.
_a veritate deflectere, desciscere_—to swerve from the truth.
_veri videndi, investigandi cupiditas_—love of truth.
_veri inquisitio atque investigatio_—zealous pursuit of truth.
_a vero abduci_—to be led away from the truth.
_proxime ad verum accedere_—to be very near the truth.
_a vero non abhorrere_—to be probable.
_veri simile esse_—to be probable.
_haec speciosiora quam veriora sunt_—this is more plausible than true.
_vera et falsa (a falsis) diiudicare_—to distinguish true and false.
_vera cum falsis confundere_—to confuse true with false.
_veritas_—veracity.
_re (vera), reapse_ (opp. _specie_)—in truth; really.
_in errore versari_—to be mistaken.
_magno errore teneri_—to be in gross error, seriously misled.
_in magno errore versari_—to be in gross error, seriously misled.
_vehementer errare_—to be in gross error, seriously misled.
_erroribus implicari_ (Tusc. 4. 27. 58)—to fall into error.
_per errorem labi_, or simply _labi_—to take a false step.
_aliquem in errorem inducere, rapere_—to lead a person into error.
_errorem animo imbibere_—to get a mistaken notion into the mind.
_errorem cum lacte nutricis sugere_ (Tusc. 3. 1. 2)—to imbibe error
from one's mother's breasts.
_error longe lateque diffusus_—a wide-spread error.
_errorem tollere_—to banish an error, do away with a false impression.
_errorem amputare et circumcīdere_—to banish an error, do away with a
false impression.
_errorem stirpitus extrahere_—to totally eradicate false principles.
_errorem deponere, corrigere_—to amend, correct one's mistake.
_alicui errorem demere, eripere, extorquere_—to undeceive a person.
_nisi fallor_—if I am not mistaken.
_nisi (animus) me fallit_—if I am not mistaken.
_nisi omnia me fallunt_—unless I'm greatly mistaken.
[1] _verum_ = the truth, concrete; _veritas_ = truth in the abstract.