Fake Etymologies

Interesting is better than true.

in‧vade, v. /ɪnˈveɪd/

From an older form of “vision” with the “in-” prefix. (Note the retained archaic construction “invasion.”) When an army has invaded a stronghold, it can see the insides of it. From without, all that can be seen is the outer walls.

An “outvasion” has been recorded only once in history. Very quick-thinking defenders leapt from the outer walls of Schloss Schwangau and broke the opening mechanism for the portcullis, trapping the invaders inside.