Borrowed from Old Khmer គំរប្ប (gaṃrappa), គំម្មរុព្ភ (gaṃmmarubbha), គុំរុព្ភ (guṃrubbha), គុំម្រុព្ភ (guṃmrubbha), គុម្រុព្ភ (gumrubbha, “to bring to a successful conclusion; to complete; to fulfill; to finish off”), extended forms of គ្រប (grapa), គ្រប្ប (grappa), គ្រុប (grupa), គ្រុប្ប (gruppa), គ្រោព (groba), គោរោព្វ (gorobva, “complete; full; perfect; replete; etc”), from which Thai ครบ (króp) was derived.
Compare Modern Khmer គំរប់ (kumrup), an extended form of គ្រប់ (krup).
| Orthographic | คำรบ g å r ɓ | |
|---|---|---|
| Phonemic | คำ-รบ g å – r ɓ | |
| Romanization | Paiboon | kam-róp |
| Royal Institute | kham-rop | |
| (standard) IPA(key) | /kʰam˧.rop̚˦˥/(R) | |
คำรบ • (kam-róp)