Good words for "before" and "after" that sort the same, both logically and alphabetically?

TL;DR – Silly OCD question looking for better words.

I have a list of event labels in a computer program similar to:

• renderer_before
• renderer_after
• before_notify
• after_notify

This is all well and good…those names convey the context of each event succinctly and accurately.

BUT! It bugs me that "before" comes after "after" when sorted alphabetically. Same for "pre" and "post".

What is a good pair of words that indicates a relative sequence between two things, that just happens to alphabetically sort in the same order?