Think of a line drawn around a language rather than around a country. Spanish, and with it Portuguese, spread out from one peninsula in Europe and took root across a whole continent, and everything inside that line, the people, the food, the music, the buildings, the subject you can study at university, can be called Hispanic. That is why the word can sit in front of almost any noun, and why it says nothing about which passport anyone holds.
The word comes from Latin hispanicus, from Hispania, the old name for the Iberian peninsula, plus the adjective ending -icus. So the line was first drawn around that peninsula, and later widened to follow the language wherever it went.
這個字來自拉丁文 hispānicus，而 hispānicus 來自 Hispānia，也就是古代對伊比利半島的稱呼，後面加上形容詞字尾 -icus。所以這條線一開始是圍著那塊半島畫的，後來才跟著語言擴出去。
Wiktionary entry supplied in this packet (etymology_text on both Hispanic entries; source_ref kaikki:3f6f69a190036ae4:279314052)
One branch
跟西語世界有關的人事物
兩個詞性其實是同一條線，只是一個貼在名詞前面，一個自己站著當名詞。
adjective · B1
From, or connected with, countries where Spanish or Portuguese is spoken, and with the people, language and culture of those countries; most often it points at Latin America, and it can also point at Spain and the rest of the Iberian peninsula.
西語裔的、西語世界的