The term 'PURELY' can be broken down into three crossword solutions: EXCLUSIVELY (11 letters), ONLY (4 letters), and ALL (3 letters). EXCLUSIVELY means to the exclusion of all others, or without any others being included. ONLY means that no other thing is involved or present. ALL means the complete amount or quantity of a particular group or thing. Together, these three words form the term PURELY, which means completely, without any admixture or modification.