The term POETIC VERB is composed of four crossword solutions: ART (3 letters), OPE (3 letters), DOST (4 letters), and HAST (4 letters). These words are all archaic forms of the verb 'to do' in the English language, which were commonly used in poetry. ART is the present tense, OPE is the past tense, DOST is the second person singular present tense, and HAST is the second person singular past tense.