English

Definition of potable adjective from the Oxford Advanced Learner's Dictionary

 

potable

 adjective
adjective
BrE BrE//ˈpəʊtəbl//
 
; NAmE NAmE//ˈpoʊtəbl//
 
(formal)
 
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(of water) safe to drink Word Origin late Middle English: from French potable, from late Latin potabilis, from Latin potare ‘to drink’.
See the Oxford Advanced American Dictionary entry: potable