Etymology: Middle English treten, from Anglo-French treter, traiter, traitier, from Latin tractare to drag about, handle, deal with, frequentative of trahere to drag, pull
Date: 14th century
1. to discuss terms of accommodation or settlement ; negotiate
2. to deal with a matter especially in writing ; discourse — usually used with of <a book treating of conservation> 3. to pay another's expenses (as for a meal or drink) especially as a compliment or as an expression of regard or friendship transitive verb 1. a. to deal with in speech or writing ; expound b. to present or represent artistically c. to deal with ; handle <food is plentiful and treated with imagination — Cecil Beaton> 2. a. to bear oneself toward ; use <treat a horse cruelly> b. to regard and deal with in a specified manner — usually used with as <treat the matter as confidential> 3. a. to provide with free food, drink, or entertainment <they treated us to lunch> b. to provide with enjoyment or gratification 4. to care for or deal with medically or surgically <treat a disease> 5. to act upon with some agent especially to improve or alter <treat a metal with acid> • treater noun II. noun Date: 1651 1. a. an entertainment given without expense to those invited b. the act of providing another with free food, drink, or entertainment <dinner will be my treat> 2. an especially unexpected source of joy, delight, or amusement <seeing her again was a treat>
New Collegiate Dictionary. 2001.