The term 'fix deeply' can be described by four crossword solutions: INGRAIN (7 letters), EMBED (5 letters), engrain (7 letters), and setinto (7 letters). All of these words mean to firmly establish something in a person's or thing's mind, memory, or nature. INGRAIN and engrain both refer to the process of making something part of one's character or nature, while EMBED and setinto refer to the process of firmly establishing something in a place or situation.