7.3.16
वर्षस्याभविष्यति
Operational rule vidhi
After a numeral, the first vowel of वर्ष gets वृद्धि before a तद्धित affix having an indicatory ञ् , ण् or क् when the affix does not refer to a Future time.
Word by word (padaccheda)
Target वर्षस्य ṣaṣṭhī · ekavacanaRight context अभविष्यति saptamī · ekavacana
- 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").
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
वर्षस्य अभविष्यति
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
After a numeral, the first vowel of वर्ष gets वृद्धि before a तद्धित affix having an indicatory ञ् , ण् or क् when the affix does not refer to a Future time.
As द्विवर्षे अधीष्टो भृतो भूतो वा = द्विवार्षिकः, त्रिवार्षिकः ॥ But when denoting future time, we have द्वैवर्षिकः, त्रैवर्षिकः "calculated to last two or three years" as in the sentence यस्य त्रैवर्षिकं धान्यं निहितं भृत्यवृत्तये अधिकं वापि विद्येत स सोमं पातुमर्हति ॥ (= त्रीणि वर्षाणि भावी). The word अभविष्यत् does not qualify the words अधीष्ट and भृत 5.1.80, the sense of futurity is there denoted by the sentence and not by the taddhita-affix: as द्वे वर्षे अधीष्टो भृतो वा कर्म करिष्यति = द्विवार्षिको मनुष्यः ॥
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.