Upasarga is a term used in Sanskrit grammar for a special class of twenty prepositional particles prefixed to verbs or to action nouns.[1] In Vedic, these prepositions are separable from verbs; in classical Sanskrit the prefixing is obligatory.
The twenty prefixes are recognized in Pāṇini's Aṣṭādhyāyī at 1.4.58-59,[2] and are enumerated in the gaṇapāṭha (#154):[3]
- pra- "forth"
 - parā- "away"
 - apa- "away"
 - sam-/saṃ- "with"
 - anu- "after"
 - ava- "off, down"
 - niḥ-/nis- "away"
 - duḥ-/dus- "bad, difficult, hard"
 - vi- "apart, asunder"
 - ā- "near"
 - ni- "down"
 - adhi- "over"
 - api- "proximate"
 - ati- "beyond"
 - su- "good, excellent"
 - ut-/ud- "up(wards)"
 - abhi- "to, towards"
 - prati- "against"
 - pari- "round, around"
 - upa- "towards, near"
 
By the usual rules of euphonic combination the two prepositions ending in visarga, niḥ and duḥ, have the alternative forms nis-/nir- and dus-/dur- respectively. The gaṇapāṭha listing has these variants, not the forms in pausa, and thus has twenty-two items in all.
A versified form of this list may be found in modern primers or textbooks:
praparāpasamanvavanirdurabhivyadhisūdatinipratiparyapayaḥ
upāṅiti viṃsatir eṣa sakhe upasargavidhiḥ kathitaḥ kavinā
Notes
References
- Monier-Williams, M., A Sanskrit English Dictionary, (reprint) New Delhi, Motilal Banarsidass 2005 ISBN 81-208-3105-5
 - Katre, Sumitra M., Aṣṭādhyāyī of Pānini, New Delhi, Motilal Banarsidass 1989