potable
Concise Oxford English Dictionary © 2008 Oxford University Press:
potable /ˈpəʊtəb(ə)l/
▶adjective drinkable.
– derivatives
potability noun.
potability noun.
– origin ME: from Fr. potable, from late L. potabilis, from L. potare ‘to drink’.
'potable' also found in these Oxford entries:

