Twelve (
12). Used, as an alternate word, by those who wish to rid the English-speaking number system of remnants of an extinct base-
12 number system and de-anomalise the ubiquitous base-
10 (decimal) system.
See firsteen
"Seconteen months hath one
year", quoth Wittingstein. "And
twice seconteen maketh one day", addeth
Kant. "Of that we can both be sure!"