You can attach the prefix Indo- to it to make the word Indo-European.
The correct way to form the compound adjective for "European" with the prefix "pro" would be "pro-European."
pro-European
According to the dictionary, it is a prefix that originated in Greece or is an Indo-European word.
The negating prefix un- comes from from the Indo-European root *ne, meaning "no" or "not."
The acronym EU stands for European Union and it is widely recognized.
Pico is the prefix in most English speaking countries. Atto is the prefix in most European countries. A trillion or a trillionth in the US has a different numerical value than the same trillion or trillionth in a European country.
US and continental Europe have different values for trillion. The European value 1018 is one million times the US value of 1012. 1018 has the prefix T (tera) 1012 has the prefix E (eta)
Annulated comes from the Latin word ānulāris meaning "ring-shaped". Super- is a prefix coming from *eks-uper, which consists of the Proto-Indo-European *eḱs ("out of") and Proto-Indo-European *uperi.
Prefix=IN
The prefix for inadequate is in-. The prefix in- means not.
Yes, prefix does have a prefix. The prefix is pur-.
The prefix for include is in-. This prefix means not.