| 1 | English | amplifier | Anything that amplifies, or makes something... |
| 2 | English | amplify | To render larger, more extended, or more intense;... |
| 3 | Middle English | amplifiyen | To amplify, embiggen, or heighten |
| 4 | Old French | amplifier | — |
| 5 | Latin | amplificare | present active infinitive of amplificō;... |
| 6 | Latin | amplifico | I enlarge, extend, increase, amplify, magnify;... |
| 7 | Latin | -fico | Forms factitive, causative, or other verbs from... |
| 8 | Latin | facio | I do; I make, construct, fashion, frame, build,... |
| 9 | Proto-Italic | fakjō | to make |
| 10 | Proto-Italic | *θakjō | — |
| 11 | Proto-Indo-European | *dʰh₁k-yé-ti | — |
| 12 | Proto-Indo-European | dʰeh₁- | to do, put, place |