In the chandas (Vedas), the affix ṭhañ comes in the remaining senses after the word hemanta,
This debars अण् 4.3.16. Thus सहश्च सहस्यश्च हैम꣡न्तिकावृतू ॥ The making of two separate Sutras of 20 and 21, is for the sake of the subsequent sutra, in which the anuvritti of word हेमन्त only is taken.,