perpend

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The Word of the Day for December 11 is: 

perpend   \per-PEND\   verb
     1 : to reflect on carefully : ponder 
    *2 : to be attentive : reflect 

Example sentence:
     Perpend: if you let this once-in-a-lifetime opportunity 
slip away, you will regret it.

Did you know?
     "Perpend" isn't used often these days, but when it does 
show up it is frequently imperative, as in our example sentence. 
As such, its use can be compared to the phrase "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.

*Indicates the sense illustrated in the example sentence.