Common Indo-European

Common Indo-European (shortened to Indo-European, CIE and Cie (/saɪ/)) is an international auxiliary language that can be described as a modernized and heavily-simplified Proto-Indo-European. Development began in 2020 and is underway.

Along with Proto-Indo-European (PIE), Common Indo-European draws elements from Modern Indo-European (MIE), another PIE-based language that is adjusted for modern usage.

Phonology
Common Indo-European has 14 consonants and five vowels. The labialization found in PIE has been removed from CIE but may be added back if that decision proves unpopular. Aspiration has also been removed. *h₁, the "neutral" laryngeal, has been selected as the basis for /h/.

Vowels
Vowels do not have length distinction like in PIE.

Orthography
Common Indo-European uses 19 letters of the Latin alphabet and leaves out c, f, j, q, v, w and z. There are no diacritics.

Word order
Common Indo-European uses the SOV word order, as that is the word order PIE is thought to have had.

Numerals
The phonemes of the numerals in CIE are heavily reduced from their original PIE forms, and the process for forming larger numbers has been simplified.

Phrases

 * Ala! Hello! (from MIE alā)