"Doth compulsively" is not a common phrase in contemporary English. However, for the purpose of discussing its spelling, it can be broken down into two words: "doth" and "compulsively". "Doth" is the archaic third-person singular form of the verb "do" and is pronounced /dʌθ/. Meanwhile, "compulsively" is an adverb that refers to doing something in an uncontrollable manner and is pronounced /kəmˈpʌlsɪvli/. Together, these two words form a phrase that is not used in modern language.