Origin: Latin suffix -ify
Acidify has 3 different meanings across 1 category:
Verb
make sour or more sour
turn acidic
"the solution acetified"
to make something (more) acidic or sour; to convert into an acid.
The word comes from combining English "acid" with the suffix "-ify," which traces back to the Latin acidus meaning "sour." It is related to the French verb acidifier.