Reconstructions

PWS
*dbḳ - to adhere, to stick to each other (EDA II)

Thought to be related, as a variant root, to PWS *ṭbḳ with a similar scope of meanings.

PWS
*dkk - to smash, to crush (EDA II)

Originally a biconsonantal element, which in WS is also attested as *dwk and *dky. See also Akk. dâku 'to kilľ.

PWS
*dḳdḳ - to pound; to be fine, small

A variant root of *dḳḳ attested in WS in both transitive and intransitive (adjectival) verbs as well as in derived nouns.  

PWS
*dwk - to smash, to crush (EDA II)

Originally a biconsonantal element, which in WS is also attested as *dkk and *dky. See also Akk. dâku 'to kilľ.

PWS
*dbr - to turn the back; to lie on one’s back (SED I 44)
Adduced under No.45
PWS
*dVb(V)r- - back, hind part (SED I No. 46)
As an anatomic term has a scarce attestation.
PWS
*dbš - to be hump-backed (SED I No. 8ᵥ; Kogan 2011: 230)
PWS
*duhn-, *daha/in- - fat (SED I No. 48)
PWS
*ḏirāˁ- - arm, elbow (SED I 65, Kogan 2011: 224)
The traditional derivation from *ḏrˁ ‘to sow’ (Fronzaroli 1964:34, 48 and 1969:9) is difficult to prove
PWS
*dVmm(ān)- - cloud (Militarev 2004: 299–300, 2010: 58; Kogan 2015: 448)
The EthS terms can be alternatively considered to be borrowed from Cushitic.