The term INSTIL INTO can be solved by the crossword solution INFUSE. To INFUSE is to introduce a substance gradually into something else, often a liquid. It is commonly used in cooking, where herbs and spices are infused into oil or butter, or when making tea, where hot water is used to extract the flavor from the tea leaves. It can also be used to describe introducing an idea or concept into a person's mind, such as instilling a sense of confidence or courage.