The term 'Shakespearean verb' refers to the verbs used in the works of William Shakespeare. The four crossword solutions for this term are HATH (4 letters), DOTH (4 letters), ART (3 letters), and OPE (3 letters). HATH is the past tense of the verb 'HAVE, ' DOTH is the third person singular present tense of the verb 'DO, ' ART is the second person singular present tense of the verb 'BE, ' and OPE is the imperative form of the verb 'OPEN.' All of these verbs were commonly used by Shakespeare in his plays and poems.