The word ānāyyaḥ is irregularly formed when meaning 'impermanent'.,
This word is thus formed:- आङ् + नी + ण्यत् = आ + नै + य = आनाय्य, (the ऐ being changed into आय् by the analogy of (VI. I. 79)).
As आनाय्यो दक्षिणाग्निः. This is a species of Dakshiņagni fire. As this fire is brought from the Garhapatya fire and is not permanently kept alive, therefore it is called anayya. This however, is not co-extensive with Dakshiņagni. It is that fire which is brought from the Garhapatya, and has the same source with the Dakshiņagni and Ahavaniyagni. A Dakshinagni fire may be taken from different sources, as from the family of a well-to-do Vaishya, or from a frying place, or from Garhapatya fire. When it is taken from the last i. e. from Garhapatya fire, it is anayya Dakshiņagni. Ahavaniya is also taken from Garhapatya.
It is not everything, that is not lasting, which is called anayya ; for a fragile pot will not be called so. It applies only to the consecrated fire. When it has not this sense, the form is आनेय meaning 'what ought to be brought'.,
