IPA: //fækˈtɪvli//
KK: /fækˈtɪvli/
In a manner that relates to or indicates a fact or reality.
The scientist presented her findings factitively, ensuring that all data was based on observable evidence.
Factitively → It is formed from "fact" (from Latin "factum", meaning something done or made) and the suffix "-ively" (meaning in a manner of). The word "factitively" means in a manner that relates to or is characterized by making or doing something.
Think of 'fact' as something that is 'done' or 'made', and remember that 'factitively' describes doing something in a certain manner.