| 1 | English | pseudonymous | Of or pertaining to a pseudonym; Fictitious; That... |
| 2 | French | pseudonyme | pseudonymous, done under a pseudonym; pseudonym |
| 3 | Ancient Greek | ψευδώνυμος | under a false name, falsely called |
| 4 | Ancient Greek | ψευδής | lying, false, untrue; deceived, beguiled |
| 5 | Ancient Greek | -ής | adjective suffix |
| 6 | Proto-Indo-European | -ēs | Primarily forms adjectival bahuvrīhi compounds |
| 7 | Proto-Indo-European | -ess | — |
| 8 | Proto-Indo-European | -os | Creates action nouns or result nouns from verbs;... |