To deviate or wander away from a path, course, or topic; to stray from the proper way.
From dis- (away) + gress (from Latin gradi, 'to walk or go'). Related to digress, this is an older or variant form emphasizing the notion of stepping away from one's course.
Though similar to 'digress,' 'disgress' has a slightly more physical, medieval quality—it suggests not just wandering in thought but actually walking away from your proper place.
Complete word intelligence in one call. Free tier — 50 lookups/day.