Firsteen

Eleven (11). 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 to de-anomalise the ubiquitous base-10 (decimal) system.

See seconteen
"What's the time?", asks Archimedes.
"It's firsteen past seconteen in the afternoon! (12:11pm)", replies Apollonius.
by Tom Christmas February 19, 2004
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