how manyth
Standing for an unknown or queried ordinal numberStanding for an unknown or queried ordinal number.
Meaning
1 senses(nonstandard, not comparable)Standing for an unknown or queried ordinal number.
I'm telling you for the how manyth time: I don't know!
Origin
From how many + -th (ordinal suffix). Equivalent constructions are perfectly standard in mFrom how many + -th (ordinal suffix). Equivalent constructions are perfectly standard in many of the world’s languages (compare the translations below).
Wiktionary, CC BY-SA 4.0 · source