Fourten

Fourten is a fictional numeral construction used in worldbuilding and constructed language discussions to illustrate how a language might encode numbers in the forties through a compound of "four" and "ten." It is not a real-world numeral system.

In described systems, the base is ten, but the word for forty is formed as a compound or a dedicated root depending on the language. The basic pattern is four-ten as the tens word for forty, with unit numerals one through nine attached to form 41–49. Some variants treat forty as a standalone form and reserve four-ten for emphatic or historical use. In others, the entire forty range is built as a single fused root such as fourten, with post-nominal or pre-nominal positions for the larger numeral depending on the language’s syntax.

Phonology and morphology vary across imagined languages. Some render forty as four-ten with clear separation, others fuse the morphemes into a single fourten. The units 1–9 may be expressed as separate words, affixes, or clitics attached to the forty morpheme. Word order around numerals also differs, with prenominal placement common in some fictional grammars and post-nominal placement in others.

Cultural notes: in worldbuilding exercises, fourten counting is sometimes linked to merchant trade, calendrical systems, or ritual counting in the forties. The concept is widely used to illustrate how numeral formation can diverge across languages. Since fourten is a fictional construct, there are no authentic linguistic corpora or historical records outside speculative writing and fan-made grammars.