लघुसिद्धान्तकौमुदी · वरदराज

कृत्तद्धितसमासाश्च

लघुसिद्धान्तकौमुदी 116 · प्रकरण 5, which opens at अर्थवदधातुरप्रत्ययः प्रातिपदिकम् · rule 2 of 100 in it

forms ending in a कृत् or तद्धित affix, and compounds, are प्रातिपदिक too

Forms ending in a कृत् affix (a primary affix that makes a word straight from a root, like क्त in मत्त), in a तद्धित affix (a secondary affix on a noun), and समास (compounds) are also termed प्रातिपदिक — a nominal base. This extends the previous rule's definition. It is why a कृत् form such as प्रमत्त "heedless" (प्र + मद् + क्त) is itself a stem and takes case endings like any noun, and why the indeclinables श्रुत्वा "having heard" and आलिङ्ग्य "having embraced" count as nominal bases before their further treatment.

Aṣṭādhyāyī — 1.2.46 कृत्तद्धितसमासाश्च
Bālānandinī (LSK, Telugu) — सूत्र 116 in the abridgement; vendor/balanandini-lsk-telugu-ocr.txt

uncheckeddrafted from the rule text and the Bālānandinī

वरदराज writes under it

कृत्तद्धितान्तौ समासाश्च तथा स्युः॥

uncheckedashtadhyayi.com (prakriyā)

237 derivations stand on it

260 words of this poem

the derivation names it — The rule stands at a step of the chain that produces the ending.