Unspoiled milk is an example of something that would be described as potable.
Origin of potableFrench ; from Late Latin potabilis ; from Classical Latin potare, to drink ; from Indo-European base an unverified form p?-, to drink from source Sanskrit p?ti, (he) drinks, Classical Latin bibere, to drink
Origin of potableMiddle English, from Old French, from Late Latin pōtābilis, from Latin pōtāre, to drink, from pōtus, a drink; see pō(i)- in Indo-European roots.
- po′ta·bil′i·ty, po′ta·ble·ness
(comparative more potable, superlative most potable)
From Old French potable, from Latin pÅtÄbilis, from pÅtÅ (“I drink").