Prefix ke- that is added to a few root words can form nouns.
| Root Word | Meaning | Prefix ke- + Root Word | Meaning |
| kasih | love | kekasih | lover, beloved |
| hendak | want | kehendak | desire/intention |
| rangka | skeleton, framework | kerangka | skeleton |
| tua | old | ketua | leader, chairman |
Prefix ke- that is added to cardinal numbers will form ordinals or can be used for collective numbers.
| Cardinal Numbers | Meaning | Ordinals/Collective Numbers | Meaning |
| dua | two | kedua | second, both |
| tiga | ketiga | three | third, all three |
| empat | four | keempat | fourth, all four |
*) Reference: Indonesian Reference Grammar, by James Neil Sneddon, 1996
