The phrase "most girded" refers to an object or person that is well-prepared or well-equipped for a particular task or situation. There are several synonyms that can be used to convey a similar meaning, such as "reinforced," "strengthened," "fortified," "bolstered," or "armed." Each of these words suggests that something or someone has been given extra support or protection to withstand potential challenges or obstacles. In a broader sense, the phrase "most girded" can also be used to describe a person's mental or emotional preparedness for a situation, in which case synonyms like "resilient" and "determined" might be more appropriate.