ptaio describes failing or going wrong at a point, whether in conduct, speech, or a stated course.

Across the supplied verses, the term marks stumbling or failure: people may stumble in many ways or in speech, stumble at one point while keeping the rest, be urged never to stumble, or be said not to have stumbled with a further fall in view.

1. Stumbling or failing in conduct or course · dominant

   The present forms in James 3:2 describe stumbling "in many ways" and not stumbling "in word," while the aorist form in James 2:10 concerns stumbling "in one point" despite keeping the whole law. In 2 Peter 1:10 the aorist subjunctive occurs in the assurance that, by doing these things, "you will never stumble"; Romans 11:11 uses the aorist in a question that distinguishes their stumbling from falling.

   James 3:2James 2:102 Peter 1:10Romans 11:11

In the Anselm Project Bible: The APB presents the forms consistently with "stumble," applying that wording to many ways, one point, speech, a future possibility, and a past question. These renderings confirm the clauses' overall presentation rather than define each form independently.