Where does “antibritánico” come from?

antibritánico (Spanish) comes from Spanish británico, from Latin britannicus, from Latin Britannia, from Ancient Greek Βρεττανία, from Ancient Greek -ῐ́ᾱ, from Proto-Indo-European -íh₂, from Proto-Indo-European -h₂ — Creates collective nouns, which refer to groups...

antibritánico (Spanish): anti-British; anti-UK

Definitions

anti-British; anti-UK

Ancestry of “antibritánico”, step by step

Step	Language	Word	Meaning
1	Spanish	británico	British
2	Latin	britannicus	British
3	Latin	Britannia	Britain
4	Ancient Greek	Βρεττανία	the British Isles
5	Ancient Greek	-ῐ́ᾱ	{{l\|en\|-ia}}; "suffix forming abstract feminine...
6	Proto-Indo-European	-íh₂	—
7	Proto-Indo-European	-h₂	Creates collective nouns, which refer to groups...

Every word from Proto-Indo-European -h₂ →Every word from Ancient Greek -ῐ́ᾱ →Every word from Ancient Greek Βρεττανία →