PS

*ḏVr(r)- - kind of worm, insect (SED II No. 74)

Hebrew
dūrā (dawwārā) - a parasite worm in the bowels (Jastrow 289)
pB.
Mehri
ḏərḏēr - flea (ML 81)
Mehri
ḏerḏîr - Floh (flea) (Jahn 1902:174)
Jibbali
ḏerrét - Ameise (ant) (Bittner 25)
Jibbali
ḏɛrḏér - flea (JL 47)
Harsusi
ḏarr - ants (HL 28)
Harsusi
ḏerḏīr - flea (HL 29)
Soqotri
dérhur - fleas (Morris 2003:321)