etaoin-srhldcu
Generates words and sentences based on the frequency of letters and word lengths in the english language. Based on English Letter Frequency Counts: Mayzner Revisited or ETAOIN SRHLDCU (archived) by Peter Norvig.
usage
etaoin// 'retvp' etaoin// 'evbb etpu erhr zar naaevnee hpek tblr rvv d etr fheebnkhr.'