ON. first in pair of voiced stops vocalized; [Vb{bdg}|Vg{bdg}] > [Vu{bdg}|V̄ø{bdg}]

ON. first in pair of voiced stops vocalized; [Vb{bdg}|Vg{bdg}] > [Vu{bdg}|V̄ø{bdg}]
GS/§4.24 GS/§4.25 GS/§4.26 WGCH/@@@

Order (00800)

Before 01000 [ē], [ō] became [ī], [ū] ᴹ✶negdē > N. nīdh EtyAC/NEG
Before 02500 [eu], [iu] became [ū] ᴹ✶libda > N. glúð Ety/LIB²
Before 02600 [ā], [au] became [ǭ] ᴹ✶khagda > N. hauð Ety/KHAG

Related

Phonetic Rule Elements

[Vbd] > [Vud]
[egd] > [ēd]
[agd] > [ād]

Phonetic Rule Examples

glibda > gliuda Vbd > Vud ᴹ✶libda > N. glúð ✧ Ety/LIB²
labdā > laudā Vbd > Vud ᴹ✶labdā > N. lauð ✧ PE19/45
dagdā > daudā agd > ād ᴹ✶dagdā > N. dauð ✧ EtyAC/DAG
kʰagda > kʰāda agd > ād ᴹ✶khagda > N. hauð ✧ Ety/KHAG
negdē > nēdē egd > ēd ᴹ✶negdē > N. nīdh ✧ EtyAC/NEG