The term 'Via the Mouth' can be broken down into two crossword solutions: ORAL (4 letters) and PERORAL (7 letters). ORAL refers to something that is done or given by mouth, such as speaking or eating. PERORAL, on the other hand, is a medical term used to describe the administration of a drug or other substance through the mouth. Both terms are related to the mouth and involve the ingestion of something, either orally or perorally.