The anomalous and multinymous particle _Om_ was first discovered by Ram Mohun Roy to be no other than the participal noun _on_=_being_ which as Max Müller says is _to on ontws_ the Being of Beings A. S. Lit. pp. 321 _et passim._ The Latin _ens_ and the French _on_ as _t’on_, bear close affinity to On and ॐ both in their sound and sense. [Sidenote: 9. The Final _Om_ अन्त्योमार्थ ।] Dr. Rájendra Lála Mitra has in one of his works pointed out the Vedic _Om_, to correspond with the Hebrew “Amen,” and this will be found so true of the final _Om_ of Brahmanical prayers, that its corresponding word _Amin_ invariably forms the last word of every prayer in Arabic, Persian and all other Mahomedan and Semitic languages. Thus it is to be seen how intimately are both of these grand families of mankind connected with each other in the main point of their different creeds. VI. LEXICAL MEANINGS OF _Om_. [Sidenote: Adverbial Meanings. आभिधानिक निपातनार्थः ।] After the etymological and philological interpretations that we have been given of the word _Om_, it is worthwhileto attend to its meanings given in the current lexicons for the information of the majority, with whom the evidence of the history of philology is of little weight and value. Táranáth’s Sanskrit dictionary (वाचस्पत्याभिधान) presents us with following adverbial meanings of the word. [Sidenote: 1. An Inceptive Particle. आरम्भार्थकः ।] The Medinikosha says he, expounds it as an inchoative particle (आरम्भार्थक शब्द) to mean the beginning of a thing (उपक्रम), and we find it accordingly used in the form of a proemial monogram at the exordium of a book or Vedic hymn, sacred rite or lecture, in the Sanhitas, Bráhmanas and Upanishads according to the passage quoted by Táránátha in his dictionary;तस्मादोमित्युदाहृत्य कृता बेदवादिनाम । यज्ञाद्याक्रिया शास्त्रोक्ताः सततं सम्प्रबर्त्तिते ॥ It answers the अथ of the Purána and the words _now_ and _then_ in English as in the passage of the Kathavalli; ॐ उशन् हवै बाजश्रबस इत्यादि । It is synonymous with beginning (आदि) in the Ch’hándogya Upanishad, whereupon the poet has well said. आसीत् महीक्षितामाद्यः प्रणवश्छन्दसा मिब । रघुवंशः । १ सर्गः । [Sidenote: 2. Illustrations of Ditto तदुदाहरणानि ।]