Definition: extended application; transfer or conveyance or application of the character or qualities or attributes of one thing to another. Atideśa in Sanskrit grammar is a very common feature prescribed by Pāṇini generally by affixing the tad. affix मत् or वत् to the word whose attributes are conveyed to another. e. g. लोटो लङ्वत् P. III. 4.85. In some cases the atideśa is noticed even without the affix मत् or वत्; e.g.गाङ्कुटादिभ्योऽञ्णिन् ङित् P. 1.2.1 . Atideśa is generally seen in all grammatical terms which end with 'vadbhāva' e. g. स्थानिवद्भाव (P.I.1.56-59), सन्वद्भाव (P.VII.4.93), अन्तादिवद्भाव (P. VI.1.85), अभूततद्भाव (P.IV.60) and others. Out of these atideśas, the स्थानिवद्भाव is the most important one, by virtue of which sometimes there is a full representation i.e. substitution of the original form called sthānin in the place of the secondary form called ādeśa. This full representation is called रूपातिदेश as different from the usual one which is called कार्यातिदेश, cf. M. Bh. VIII.1.90 Vārt. 1 and VIII.1.95. Vart.3. Regarding the use of अतिदेश there is laid down a general dictum सामान्यातिदेशे विशेषानतिदेशः when an operation depending on the general properties of a thing could be taken by extended application, an operation depending on special properties should not be taken by virtue of the same : e. g. भूतवत् in P. III.3.132 means as in the case of the general past tense and not in the case of any special past tense like the imperfect (अनद्यतन), or the perfect (परोक्ष). See Par. Śek. Pari. 101, M. Bh. on P. III. 3. 132. There is also a general dictum अतिदेशिकमनित्यम्whatever is transferred by an extended application, need not, be necessarily taken. See Par. Śek. 93.6 as also M. Bh. on P.I.1.123 Vārt.4, I.2.1 Vārt. 3, II.3.69 Vārt.2 etc., Kaiyaṭa on II. 1.2 and VI.4.22 and Nyāsa on P. I.1.56 and P. I.2.58 Vārt. 8. The dictum अातिदेशिकमनित्यम् is given as a Paribhāṣā by Nāgeśa cf. Pari. Śek. 93. 6.