Ax has an in-built parameter to remember text that user typed in the past and recalled that text when you type it next time in the future. This is a handy tool and minimise your text typing. There is a parameter to turn off this option if you do not like it. Let’s have a quick navigation understanding of this setup;
File Menu -> Tools -> Options -> Autocomplete
If option is disabled, system will not suggest text which is inserted in the past.
If option is enabled, system will autocomplete text which is inserted in the past.