yerro

n. error, mistake, something that is incorrect

v. stray, err; mistake; wander, roam about

= miss + the mark, ramble, err, roam (about/around), mistake, range, rove.
Ex: Such considerations suggest that exhortations directed at SLIS to transform their curricula in unspecified radical fashion miss the mark.
Ex: Because by now comparative librarianship has a well-developed methodology, he does not have to waste his effort by rambling.
Ex: Wherein had she erred? Try as she might she could think of nothing.
Ex: Unless children are given time to roam about unhindered among books of many kinds, left alone to choose for themselves, and to do what any avid adult reader does, then maybe we labor in vain.
Ex: A flat 'no' to a question such as 'Is this book recommended for Professor Shaw's course?' leaves uncertainty as to whether one was mistaken in the professor or in the suggestion that it was for a course.
Ex: We will be bringing scholars from all over the world both to range widely in our multiform collections and put things together rather than just take them apart.
Ex: The production is extremely lively: Wandering musicians rove the tiny stage and aisles, competing with birdsong and baroque concertos over the tannoy.