Peruse originally meant to read in great detail.
Somehow, people starting using it to mean to review in a cursory manner.
Now, the definition is both (even though they blatantly contradict). If you use the word, and/or if someone uses the word in directions for you, be sure the meaning is clear!
Main Entry: pe·ruse
Function: transitive verb
Inflected Form(s): pe·rused; pe·rus·ing
Etymology: Middle English, to use up, deal with in sequence, from Latin per- thoroughly + Middle English usen to use
1 a : to examine or consider with attention and in detail : study b : to look over or through in a casual or cursory manner
2 : read; especially : to read over in an attentive or leisurely manner
— pe·rus·al \-ˈrü-zəl\ noun
— pe·rus·er noun
Thanks to DailyWritingTips.com for the heads up!
Another great article I read today is all about buzzwords of 2009.