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For example, in the commentary on the first aphorism of the first chapter, it is written about the word 'samyak' that 'samyak' is a particle or the form of the root "añca" with the prefix 'sam.' In this regard, the Sarvārthasiddhi states that the word 'samyak' is un-derived, or indivisible, or it is derived—having been established through the combination of both root and suffix. When the root "añca" is affixed with the suffix "kvi," the word 'samyak' is formed as 'sam + añcati.' In the explanation of the word 'samyak,' clarity in the Sarvārthasiddhi is greater than in the commentary. Similarly, regarding the derivation of the word 'darśana,' the commentary states only that 'darśana' is a form of the root "dṛśi," whereas the Sarvārthasiddhi clearly explains the derivation of 'darśana' in three ways. The derivation of the words 'jñāna' and 'caritra' is not clear in the commentary, whereas in the Sarvārthasiddhi, their derivation is clearly described in three ways, and later it is supported from a Jain perspective. Likewise, the discussion on which word came first in the compounds 'darśana' and 'jñāna' is not present in the commentary, while it is clear in the Sarvārthasiddhi. Similarly, in the commentary on the second aphorism of the first chapter, only two meanings are indicated for the word 'tattva,' whereas in the Sarvārthasiddhi, the derivation of these two meanings is given, and how the root "dṛśi" should be taken as having the meaning of 'faith' is also indicated, which is not found in the commentary.
From the perspective of the development of meaning, the Sarvārthasiddhi seems more recent compared to the commentary. What is present in the commentary is elaborated upon and discussed further in the Sarvārthasiddhi. The discussions of grammar and non-Jain philosophies in the Sarvārthasiddhi are more extensive than in the commentary. The analytical clarity and statement of Jain definitions, although concise, is much greater in the Sarvārthasiddhi than in the commentary. The logic in the Sarvārthasiddhi increases compared to the commentary, and perspectives from scientists outside Jainism, such as Buddhists, are included in it, along with refutations of other philosophies.
1. Compare the commentary and Sarvārthasiddhi of aphorisms 1.2, 1.12, 1.32, and 2.1, etc.