Schedule (US)

A schedule is a time-management tool which indicates a timetable of when certain tasks must be completed or when events are to take place.
The word schedule originally meant "piece of paper with writing on it", intended as an appendix. In fact, schedule, along with its original definition derives from Old French cedule, which in turn derives from Latin schedula, which "meant strip of paper". The Latin diminutive, in turn was derived from the Ancient Greek skhida, which meant "splinter", which came to be intended as a split of paper. 
Schedule changed in meaning in the mid-19th century as "printed timetable" and was used for trains in railways.
The correct pronunciation of schedule in American English is ske-jool. The "ch" in schedule is therefore pronounced with a "k" sound, differently from the British pronunciation of schedule. The reason schedule is pronounced with a "k" sound in the US is that it derives from usage by noted lexicographer and textbook pioneer Noah Webster (from which the Webster in the Merriam-Webster dictionary came from), who indicated that the proper way to pronounce schedule should be traced back to its Greek roots, skhida, which was pronounced with a "k".

General Lexicon

English