able to be forgiven or pardoned; not seriously wrong, as a sin (opposed to mortal).
2.
excusable; trifling; minor: a venial error; a venial offense.
Origin: 1250–1300; Middle English < Medieval Latin veniālis, equivalent to Latin veni(a) grace, favor, indulgence (akin to venus;see venerate, Venus) + -ālis-al1
c.1300, from O.Fr. venial, from L. venialis "pardonable," from venia "forgiveness, indulgence, pardon," related to venus "sexual love, desire" (see Venus).