[subscribed]

Could be a wordplay due to the fact "invigilation" can be translated to and from the Polish word with a _very_ heavy and long connotations to the USSR state surveillance, oppression and abuse.

Surveillance would be a more "modern" (even if more natural or seemingly correct word), without this sort of the implied baggage.

[pietmichal]

It's not a wordplay. Poles usually make a mistake because "invigilation" sounds english enough to them and just assume it is an english word.

[orleyhuxwell]

Yes it was my mistake, exactly the case you've described.