For two actions, things (actor muɴ- & theme) to resemble each other (loc ref) in appearance, in manner, in a particular feature singled out as a basis of comparison.
Nā'uy an numpaddung di ala'āyan da Ingkukku ay Manābung ti nundehhandan nitūngaw.
The oldness of Ingkukku and Manābung are beginning to resemble each other because they were born at the same time.
Numpapaddung: focus is on three or more actions, or things that resemble each other.
For someone (agent) to make two actions, things (theme -on) resemble each other (loc ref), as described above.
mamaddung
Papaddūngon: focus is on three or more actions or things made to resemble each other.