Normally origin means departure.
In practice, it means the government is 1) allowing airlines to operate flights from the listed countries, 2) allowing passenger ships to enter their harbours 2) reopen its land border with France and Portugal.
First, remember that Schengen travels, under normal rules, are domestic at all effect, so no border stop, no systematic inspection, no questioning. If you fly from Finland to Spain, your "origin" is Finland and it is very unlikely to get questions under normal rules.
That said… For the purpose of health controls and disease prevention, it may be also important your RECENT travel history. Once at the external Schengen border, where people are questioned, authorities may ask the traveler for travel history and in particular inspect passports.
In a few words… Your passport/residency is meaningless in the context of disease prevention
Credit:stackoverflow.com‘