2.4.25
विभाषा सेनासुराच्छायाशालानिशानाम्
Operational rule vidhi
A तत्-पुरुष compound ending with the words सेना 'army', सुरा 'wine', छाया 'shadow', शाला 'house' and निशा 'night', is optionally neuter, with the exception of that which is formed by the particle नञ् -- नञ् (2.2.6), and the कर्मधारय compound.
Word by word (padaccheda)
Substitute / term prathamā · ekavacanaTarget सेना- सुरा- छाया- शाला- निशानाम् ṣaṣṭhī · bahuvacana
- Substitute / term Prathamā (1st case): in operational rules, the substitute or the thing introduced; in definitions, the term or its referent.
- Target Ṣaṣṭhī (6th case): names what gets replaced, "in place of X" (1.1.49 षष्ठी स्थानेयोगा).
Dotted words are technical terms. Hover or tap one to see its card.
Full reading
सेना-
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
सेना-
Replace senā-surā-chāyā-śālā-niśānām with vibhāṣā, optionally. Inherited words (anuvṛtti) may add further conditions.
Commentary
A तत्-पुरुष compound ending with the words सेना 'army', सुरा 'wine', छाया 'shadow', शाला 'house' and निशा 'night', is optionally neuter, with the exception of that which is formed by the particle नञ् -- नञ् 2.2.6, and the कर्मधारय compound.
As ब्राह्मणसेना, ब्राह्मणसेनम् 'the Brahmana army,' यवसुरम्, यवसुरा 'the barley wine,' कुड्यच्छायम् , कुड्यच्छाया 'the shadow of the wall,' गोशालम्, गोशाला 'the cow house.' श्वनिशम्, श्वनिशा 'to-morrow night.' But असेना 'non-army,' परमसेना 'good army,' the former being negative and the latter karmadharaya compound. For accent see (VI.2.14. 123).
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.