The affixes yat and ṣa come with the force of matup in the chandas (Vedas) after the word madhu,
Thus माध॑वः or मधव्यः॑ ॥ Sometimes the affix is elided, as मधुः, all these mean the month of Vaisakha. So also माधवाः, मधव्या and मधुः meaning तनूः a body.,
