तद्धिताः

This is an adhikara or governing sutra. Up to the end of the Fifth Book, all the affixes that will be taught, are to be understood to have the name of Taddhita. Thus the affix ति taught in the very next sutra. As युवतिः The word so formed is called Pratipadika. The word तद्धिताः is in the number, and not exhibited in the singular, like the words प्रत्ययः (III. I. 1) &c; and it, therefore, indicates that it includes also affixes which are not especially taught in this book. Such as पृथिव्य ञाञौ॥ अग्रादि पश्चाड् डिमच् ॥ As पार्थिव, अग्रिम, आदिम, पश्चिम ॥ See Vart IV. 3. 23. The word Taddhita is used in Sutras like कृत्तद्धितसमासाश्च 1.2.46.,