hydrate

Noun

• any compound that contains water of crystallization

Verb

• cause to be hydrated; add water or moisture to
  • hydrate your skin
    

• become hydrated and combine with water

• supply water or liquid to in order to maintain a healthy balance
  • the bicyclists must be hydrated frequently
    

Related words

• Antonyms: 
  exsiccate , dehydrate , dry up , desiccate