underdelve in English dictionary underdelve Meanings and definitions of "underdelve" (transitive, obsolete) To dig down. verb (transitive, obsolete) To dig down. more Grammar and declension of underdelve underdelve ( third-person singular simple present underdelves, present participle underdelving, simple past underdelved or underdolve, past participle underdelved or underdolven) underdelve (third-person singular simple present underdelves, present participle underdelving, simple past underdelved or underdolve, past participle underdelved or underdolven) more Sample sentences with "underdelve" Declension Stem Try again Authors