Osage script

The 2014 vowel letters are as follows:

Long vowels are indicated with a macron, high tone by an acute accent, and a long vowel with high tone by a double acute accent: e.g. oral ⟨𐒰̄ 𐓘̄⟩ Ā ā, ⟨𐒰́ 𐓘́⟩ Á á, ⟨𐒰̋ 𐓘̋⟩ Ā́ ā́,, nasal ⟨𐒰̄͘ 𐓘̄͘⟩ Ą̄ ą̄, ⟨𐒰́͘ 𐓘́͘⟩ Ą́ ą́, ⟨𐒰̋͘ 𐓘̋͘⟩ Ą̄́ ą̄́.

It is not clear how Ə is used, as it is not phonemic in Osage.

The a comes from Latin ⟨A⟩ (without the crossbar, as in the NASA "worm" logo), e from Latin cursive ⟨Ɑ⟩ (the 'long' sound of the English letter a is rather like Osage e). The source for i is obscure, though Latin ⟨I⟩ does appear inside ⟨Λ⟩ in the diphthong ai.

The 2014 consonant letters and digraphs are as follows. As in Latin orthography, the ejective consonants are written with a diacritic, and the strongly aspirated stops with digraphs. The pre-aspirated stops were originally written as digraphs with h, but since they vary by dialect with geminates, the 2014 revision included new letters for them derived by adding a cross-bar.

Px and pš are allophones, as are kx ~ kš and tx ~ ch (tsh). Hy and ky are sequences rather than single consonants.

The source of p is Latin ⟨P⟩, that of t is Latin ⟨D⟩ (an alternative transcription of Osage t), č is from ⟨Ch⟩, k from ⟨K⟩. C is from ⟨Ts⟩ and the Osage s. S and z are the top halves of ⟨S⟩ and ⟨Z⟩; š and ž are derived from adding a tail to the full letters, much like Latin ⟨ʒ⟩. Br, st, sk are ligatures of those letters, m, n and l appear to be from cursive, and ð is a ligature of ⟨Th⟩, which is how it is often transcribed. W is a partial ⟨w⟩. X might be from cursive ⟨x⟩; h is obscure.