The vowel [i] could be short or long in Ilkorin. Non-final [i] generally survived from Primitive Elvish, except where it underwent a-affection. Short [i] developed medially from primitive [j], as well as from [e] before nasal clusters [nn], [nd], [ŋg]. Long [ī] also developed from the primitive diphthong [ei].
References ✧ PE19/23
|ᴹ✶-gj- > -ı̯-||[-gj-] > [-gi-] > [-ɣi-] > [-i-]||✧ PE19/23|
||✧ PE19/23 (-j- > -ı̯-)|