tathā hi ekasāmagryadhīnatvaṃ kāryakāraṇabhāvaḥ ādiśabdena sārūpyam etad upacāranibandhanaṃ bhavet /
For [only] these could be grounds for figurative usage: dependence on a single causal complex, the relation of cause and effect, and similarity of form - this last being indicated by the word "ādi" ["and so forth"].