4.3.77
विद्यायोनिसंबन्धेभ्यो वुञ्
Operational rule vidhi
The affix वुञ् comes in the sense of 'thence come' after a word denoting a person connected through the relationship or family origin.
Word by word (padaccheda)
Left context विद्या- योनि- संबन्धेभ्यः pañcamī · bahuvacanaSubstitute / term वु prathamā · ekavacana
- Left context Pañcamī (5th case): "after X", the operation applies to what follows (1.1.67 तस्मादित्युत्तरस्य). Also used for limits and sources.
- Substitute / term Prathamā (1st case): in operational rules, the substitute or the thing introduced; in definitions, the term or its referent.
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Full reading
विद्या-
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Commentary
The affix वुञ् comes in the sense of 'thence come' after a word denoting a person connected through the relationship or family origin.
Persons related (sambandha) through learning (such as teacher and pupil), or through blood (yoni, e. g. father and son) are called विद्यायोनिसम्बन्धाः ॥ Words denoting such persons take the affix वुञ्. This debars अण् and छ. Thus उपाध्यायादागतम् = औपाध्यायकम् 'knowledge derived from a spiritual teacher.' शैष्यकम्, आचार्यकम् ॥ So also योनिसंबन्धः as मातामहकः 'wealth derived from a maternal grand-father.' पितामहकः, मातुलकः ॥
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.