‖ chronostichon|krɒˈnɒstɪkɒn| [mod.f.Gr. χρόνο-ς time + στίχος row, line of verse.] (See quot.) 1859N. & Q.Ser. ii. vii. 284 A chronosticon is properly a poetical line which by its letters, or some of them, indicates a date.1882J. Hilton Chronograms 23 A Chronostichon of the beheading of Charles on the 30th day of January.