Learn Farsi: دولت از یک پارلمان جهانی حمایت کرد. - The government supported a global parliament.

It is formed by taking the noun jahān (world) and adding the suffix -i. This suffix is incredibly common in Farsi for turning a noun into a relational adjective. So, jahāni literally means "related to the world" or "global."

Why do we use the preposition az (from) right before "a global parliament"?

In Farsi, the compound verb hemāyat kardan (to support) specifically requires the preposition az to introduce the thing being supported. While in English we directly "support a parliament," in Farsi you literally express it as "did support from a parliament."

Is there an ezafe connecting the noun and adjective here?

Yes! There is an ezafe (the short "e" sound) linking the noun pārlmān to its adjective jahāni. You must pronounce it as pārlmān-e jahāni. Because it is a short vowel, it is not written in the standard Farsi script, but you always need it to connect a noun to its modifier.

What tense is hemāyat kard, and how does it match the subject?

hemāyat kard is in the simple past tense. The verbal part, kard, is the third-person singular form of kardan (to do). It matches the singular subject dovlat (government). Notice that it doesn't have a personal ending (like -am or -i) because the third-person singular in the past tense is simply the bare past stem.