There are a variety of synonyms for the word "grovelingly," each with their own connotation and level of intensity. Some alternatives to "grovelingly" include: subserviently, obsequiously, servilely, fawningly, sycophantically, and humbly. All of these words suggest someone who is overly submissive or deferential to another person or group. However, the degree to which they imply servitude or humiliation can vary. For example, "subserviently" may simply denote a willingness to comply with authority, while "grovelingly" implies a more extreme and humiliating level of subservience. Ultimately, the choice of synonym depends on the speaker's intent and the context in which the word is used.