अनार्ष

Monier-Williams · anārṣa
an-ārṣa mfn. not belonging to a Ṛishi or to a Vedic hymn ‖ not belonging to the Saṃhitā text (e.g. the word iti, added for grammatical purposes in the Pada-pāṭha to certain words RPrāt.) ‖ not applied to a Ṛishi, not added to his name (as an affix) Pāṇ. 4-1, 78

विस्तृत संस्कृत–हिन्दी · adjective
यः आर्षः न अस्ति।; "अनार्षं वचनं मा श्रुणोतु।"