After the lengthened ā of the reduplicate of aś (aśnoti) comes the augment nuṭ (n) before the short a in the liṭ (Perfect Tense).,
This applies to a case where the root does not contain a double consonant. Thus व्यानशे, व्यानशाते, व्यानशिरे ॥ The rule applies to अश् (Svadi 18) and not to अश् (Kryadi 51); there we have आश, आशतुः, आशुः ॥,