This reminded me that Commodore BASIC (among others, as this is in no way restricted to that platform, and is a common technique), had bit 5 set in the last byt

This reminded me that Commodore BASIC (among others, as this is in no way restricted to that platform, and is a common technique), had bit 5 set in the last byte of each word in its keyword list to signal the end of the word. This had the effect of capitalizing the last letter, and avoided the need for a delimiter character on that memory strapped platform.