Ail and ALE are both Germanic words with different meanings. Both words are homophones since they are similar in sound, but differ in terms of spelling and meaning. Ail is used mostly as a verb, although not commonly used by people since it is an older one. As a transitive verb, it means to cause to suffer; to afflict or trouble.
Also, it is chiefly used in indefinite or interrogative construction. For example: "Have some warm water, it is good for anything that ails you". When it is used as an intransitive verb, it means to be troubled, to be ill. On the other hand, Ale is a type of beer made without hops.
It is a type of beer produced through the process known as warn fermentation. This process allows the yeast to change the sugar to alcohol when the sugar in the brew is placed under warm temperature.