The phrase "doth a bit" can be interpreted in a variety of ways, depending on the context in which it is used. Some synonyms for this phrase could include "does somewhat," "performs a little," or "carries out a small task." Other options might include "accomplishes a minor objective," "fulfills a small role," or "executes a modest chore." Ultimately, the specific connotations of "doth a bit" will depend on the specific situation in which it is used, and the precise meaning of the words may vary slightly based on the speaker's intent. However, these potential synonyms offer a range of potential interpretations that could be applied to this phrase.