Illyrian-Albanian prefix d-

Writing about Albanian place-name Shkalla e Dunjas (Watery Stair) I
have noticed that we have to deal with prefixed form d-unj-as (for
suffix –as cf. Mamuras, Përrenjas, Bishkas), where –unj- is oldest
form of Alb ujë `water'. Same prefix I have noticed also in Alb
place-name Vau i Dejës `Deja's Ford', attested form dain-ja, lat.
Daigna, where d- is also prefix, as we could see from Ain-ona/Aen-ona.
Same root we notice in Alb place-name Bar-aina etc.
Having in mind that we have for nasalized zero-grade form of *reiH-
`to flow, run' the form *rin- and suffixed forms *ril- and *rei-wo- I
came to conclusion that Illyrian/Alb river names Drinus, Drilon are
indeed prefixed form d- + ril- and d- + rin- as well as Drivastum
(mod. Drisht) from d- + riv-astum. For the form Drilon and Drivastum
exists also other prefixed forms K-ril-evë and K-riv-açë.
Same phenomenon I have noticed in Illyrian fortess name Dabanos (Proc.
De aed. IV, 4), that seems by all chances to be a prefixed form d- ab
`water'-anos, attested also in Dardanian place-names Dabesh-ec,
Dab-in-oc, Dab-koc and brook-name Dab-oc.
Prefix d- in Albanian has intensifying function: rojë `guard', d-rojë
`dismay, shyness', dboj `expel, banish' (cf. zboj `id.'), dborë
`snow', besides borë `id.', zborës, dlir `to purify' from adj. i lirë
`free', dvarr `to hurt, wound' (cf. Alb. varrë `wound') etc.

So, to conclude: d- + root

*rin- > Illyrian/Albanian river name Drinum
*ril- > Illyrian/Albanian revers name Drilon, Drilo (cf. also above
K-ril-evë)
*rei-wo- > Illyrian/Albanian river name Drivastum (cf. also above
K-riv-açë)
*ab- > Illyrian/Albanian Dabanos (cf. also above Dab-anos, Dab-oc,
Dab-inoc, Dab-koc)
*roi-na: > Illyrian/Albanian river names Dren-ica, Dren-oc etc.

Konushevci