| v.  perked, perk·ing, perks  v.intr. 1.  To stick up or jut out: dogs' ears that perk. 2.  To carry oneself in a lively and jaunty manner. v.tr.  To cause to stick up quickly: The dog perked its ears at the noise. adj.Phrasal Verb:  Perky.  perk up 1.  To regain or cause to regain one's good spirits or liveliness. 2.  To refresh the appearance of: New furniture and paint perked up the room. [Possibly Middle English perken, to perch, from perk, rod, perch, probably from Medieval Latin perca and from Old French perche, perce, both from Latin pertica, rod; see  PERCH1.] | 
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
| intr.v.  perked, perk·ing, perks   Informal  To percolate: The coffee was perking on the stove. | 
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.











