perpend

Perpend isn't used often these days, but when it does show up it is frequently imperative, as in "Perpend the following." As such, its use can be compared to the phrases "consider this" or "mark my words." Perpend arrived in English in the 15th century from the Latin verb perpendere, which in turn comes from pendere, meaning "to weigh." Appropriately, our English word essentially means "to weigh carefully in the mind." Pendere has several descendants in English, including append, compendium, expend, and suspend. Perpend can also be a noun meaning "a brick or large stone reaching through a wall" or "a wall built of such stones," but that perpend comes from a Middle French source and is unrelated to the verb.