·     No glyphs given in K&H, K&L, BMM9, 25EMC (as expected, as this glyph has no known pronunciation).

·     Features: an inverted vase (Spanish olla) with infixed K’IN.

·     It is not totally clear to me if TOK.p16.r2.c4, MHD.ZV1, T182 are meant to be example of the “IO”.

·     Do not confuse this with the visually similar SIP, which is the inverted vase with infixed “AT”; the ya present at the bottom of the “IO” is not a diagnostic, as it can also occur with SIP.

·     There is some connection with water in the case of this female title only: in the Madrid Codex there is a female goddess who carries an inverted vase and la is also connected with water (visual connection: the 3 dots look like drops of water).

·     It is always associated with IX-K’UH, a female title:

o The whole ”IO”-IX-K’UH is used as a title for multiple real-life women, associating them with a goddess (in the same way as K’uhul associates male rulers with gods).

o This compound may be given the nickname “IOT” = “Inverted-olla Title”.

o It will be pronounced <X>-IX-K’UH, whatever the pronunciation of <X> = “IO” turns out to be.

o Ix K’uh means “goddess” because K’uh means “god” (literally “Female God”) – do not confuse this with the semantically related female title K’uhul Ixik (“Divine Lady”).

o The “IO” is always associated with IX K’UH, but the converse is not the case – IX K’UH occurs in other contexts without the “IO”.