Dear Yong Peng,

> Do you think there are also some mistakes in the following
> derivation
> from the book:
>
> 3rd Conjugation (ya):
> divu - to shine
> div + ya + ti = divyati = dibyati(?) = dippati

It appears to me that the verb dippati comes from the Skt root /diip
(diipyate), also perhaps related to /dii (diidyati). About the
derivation you give above, Duroiselle says this at paragraph 71,
subsection five:

"div+ya=divva=dibba"

I think it is a mistake to think that dibba becomes dippa. You can
look at the PED divya, dibba, dibbati, etc. I would say the
derevation for dippati comes from /diip+ya=diippa=dippa. Whitney says
this about /div:

"No root √div 'shine' exists as such in the language, except so far as
it may be inferable from the noun d/iv or dy/u V.+, div/it RV., and
the (in that case, secondary) root dyut. With all these the root dIv
'play' has nothing to do."

Suma"ngalaani,

Yuttadhammo