Dear Madhav, 
Could borrowing back from the vernacular perhaps be part of Sanskrit being, or having been in former centuries, a living language?
As for the perfect formation: one could think of the optionality (or anityatā) of ṆiC as the real underlying issue, and this was already discussed before Vopadeva by 
Mādhava, who refers to even earlier discussions such as the one occasioned by the Kāśikāvṛtti citing jagaṇatuḥ jagaṇuḥ (although from root gaṇ in the curādi gaṇa) as counterexamples under ata ekahal-...: here Bodhisattvadeśīyācārya-Jinendrabuddhi is more ready to accept the KV's examples than Vidvadvara-Haradattamiśra (both refer nevertheless to a nyāya 'anityaṇyantāś curādayaḥ').
Could this difference further point to a diglossic divergence within the Sanskrit tradition going back to the divergence between, on one side, the KV of broader ("popular") orientation (followed by Jinendrabuddhi, Vopadeva, Melputtur Narayana, the modern Mādhava) and, on the other side, the Bhāṣya of śiṣṭa-elite orientation (followed by Haradatta, Kaiyaṭa, the old Mādhava, i.e., Mādhava-Sāyaṇa ...)?
With best wishes, 
Jan

On Wed, 22 Jul 2020 at 14:43, Madhav Deshpande <mmdesh@umich.edu> wrote:
Dear Jan,

     Narayan Prasad on BVP also pointed to Bopadeva's Kavikalpadruma for चोरति/चोरयति.  The verb form चोरति may as well be a borrow-back from vernacular usages.  For now, Bopadeva is a good authority for me to use चोरति/चुचोर in my verses. The past perfect corresponding to चोरयति is the periphrastic चोरयामास type, rather than चुचोर.  With best wishes,

Madhav

Madhav M. Deshpande
Professor Emeritus, Sanskrit and Linguistics
University of Michigan, Ann Arbor, Michigan, USA
Senior Fellow, Oxford Center for Hindu Studies

[Residence: Campbell, California, USA]


On Tue, Jul 21, 2020 at 11:31 PM Jan E.M. Houben <jemhouben@gmail.com> wrote:
Dear Madhav, 
Rosen must have taken into account forms of medieval "living sanskrit" noted by Vopadeva in his Kalpadruma. 
Vopadeva lists, in stanza 265, cur-ki steye, with anubandha ki indicating that it is among the roots that "belong to the cur class only optionally":
Palsule, ed. of Kavikalpadruma of Vopadeva, Poona (sic) 1954, p. xxvii (Vopadeva's anubandhas), and p. 43 for stanza 265: a commentary explains: ki, corayati corati
Palsule's Concordance published in 1955 in the Bulletin of the Deccan College Research Institute lists cur on p. 46 as being accepted by all grammarians exclusively as belonging to the Xth class, except Vopadeva who accepts it in both the Ist and Xth class. 
I did not check what your namesake Madhava has to say about cur
But Melputtur Narayana Bhatta summarizes him in his brief comment on cur (p. 619 of Guruvayur edition):
cura steye / akāra uktyarthaḥ / ‘ṇicaś ca’ (AA 1.3.74) iti taṅ curāder neti mataṁ mādhavadūṣitam / tenobhayapaditvam eva / corayati, corayate’rtham / 
   ke cit sarvacurādīnām anityaṇyantatāṁ jaguḥ /
   yeṣāṁ vikalpacihnaṁ ( ? -cittaṁ ?) syāt teṣām eveti mādhavaḥ //

In addition, Narayana Bhatta gives cura steye / corati in his long appendix to the Dhatupatha, under drume’dhikā bhvādayaḥ
However, could one not have a perfect cucora even without accepting cura steye / corati
Best, 
Jan



 

On Tue, 21 Jul 2020 at 17:56, Madhav Deshpande via INDOLOGY <indology@list.indology.info> wrote:
In his book Radices Sanskritae, published in 1827 from Berlin, Frederick Rosen lists the root चुर् as occurring in the first and the 10th conjugations, and provides forms like चोरति/चोरयति and चुचोर/चोरयामास.
image.png
I have used the form चुचोर in one of my verses, and I wanted to know from other Vaiyākaraṇas if there is any evidence for the root चुर् in the first conjugation.  Perhaps, G.B. Palsule's concordance of the various versions of the Dhātupāṭha has some information. I couldn't find my copy of this book. Rosen does not list the source of his information.

Madhav M. Deshpande
Professor Emeritus, Sanskrit and Linguistics
University of Michigan, Ann Arbor, Michigan, USA
Senior Fellow, Oxford Center for Hindu Studies

[Residence: Campbell, California, USA]
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--

Jan E.M. Houben

Directeur d'Études, Professor of South Asian History and Philology

Sources et histoire de la tradition sanskrite

École Pratique des Hautes Études (EPHE, Paris Sciences et Lettres)

Sciences historiques et philologiques 

johannes.houben [at] ephe.psl.eu

https://ephe-sorbonne.academia.edu/JanEMHouben



--

Jan E.M. Houben

Directeur d'Études, Professor of South Asian History and Philology

Sources et histoire de la tradition sanskrite

École Pratique des Hautes Études (EPHE, Paris Sciences et Lettres)

Sciences historiques et philologiques 

johannes.houben [at] ephe.psl.eu

https://ephe-sorbonne.academia.edu/JanEMHouben