6.1.50 मीनातिमिनोतिदीङां ल्यपि च

Word by word (padaccheda)

Target मीनाति- मिनोति- दीङाम् ṣaṣṭhī · bahuvacanaRight context ल्यपि saptamī · ekavacanaIndeclinable च avyaya

Target Ṣaṣṭhī (6th case): names what gets replaced, "in place of X" (1.1.49 षष्ठी स्थानेयोगा).
Right context Saptamī (7th case): "when X follows", the operation applies to what precedes (1.1.66 तस्मिन्निति निर्दिष्टे पूर्वस्य). Also a condition or domain ("in the sense of").
Indeclinable An avyaya such as च "and", वा "optionally", न "not".

Dotted words are technical terms, dashed ones pratyāhāras (names for classes of sounds or affixes). Hover or tap one to see its card.

Full reading

मीनाति-मिनोति-दीङाम् ल्यपि च

Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.

Commentary

And there is substitution of आ for the finals of मी 'to hurt', मि 'to scatter' and दी 'to decay' when the affix ल्यप् follows, as well as before those affixes which demand this substitution for the diphthong.
By force of the word च 'and' in the sutra, the substitution takes place of the diphthongs also of these verbs before all affixes other than शित्, and this substitution takes place, before the occasion for the applying of the affixes arises (उपदेशावस्थायाम् आत्वं भवति) ॥ So that these verbs should be understood as if they were enunciated with an आ, so that all rules of affixes relating to आ will apply to them. Thus प्रमाता, प्रमातव्यम्, प्रमातुम्, प्रमाय, निमाता, निमातुम्, निमातव्यम्, निमाय, उपदाता, उपदातव्यम्, उपदातुम्, उपदाय ॥ The substitution of आ being understood to have taken place in the very उपदेश (in the dhatupatha) of these roots, the affixes relating to roots ending in इ or ई do not apply to these at all. Thus उपदायो वर्त्तते, ईषदुपदानं, formed by घञ् and युच् by taking दी = दा and adding these affixes 3.3.128 and 3.3.18 and not the affixes अच् 3.3.56 and खल् 3.3.126.

Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.