root word: alunya
pang̃ang̃alunyâ
adultery
nangangalunya
to be engaged in adultery
A possible synonym is pakikiagulò.
pambababae
womanizing
nambababae
womanizes
babaero
womanizer
alunya
concubine
mangalunya
to have a concubine, mistress
The word alunya itself is very obscure and is almost never used.
MGA KAHULUGAN SA TAGALOG
pangangalunyâ: pakikiapid
pakikiapíd: pagsasáma ng dalawang hindi ka-sal