ད་དང་ན་སྔོན་འཇུག་ཅན།

Some words with d and n final sounds are said to be semantically identical. For instance:

1. btsad po and bstan po “king” (dGe.chos-3: 214.16–17)
2. rgad (po) and rgan (pa) “old”
3. rgyud and rgyun “continuity/continuum”
4. gshed and gshen?
5. chud po and chun po (dGe.chos-3: 214.17–18)
6. bod and bon? (dGe.chos-3: 214.18–19)

What else?