It can be either. Usually when it's a noun, the stress is on the first syllable. When it's an adjective, the stress is on the second syllable.
Q: Did you like the article I wrote?
A: I'm con-TENT with the CON-tent.
Either syllable may be stressed, depending on the meaning. Like some other two-syllable words, permit is a noun when stressed on the first (PERmit), and a verb when stressed on the last syllable (perMIT). Other examples of this phenomenon are: PER-fume (noun) and per-FUME (verb); PER-fect (adjective) and per-FECT (verb); CONtent and conTENT; similarly CONvoy and conVEY.
Footprint is stressed on the first syllable.
The second syllable (-ta-) is the stressed syllable in potato.
The stressed syllable in the word "contentment" is the second syllable, "tent."
Behave is stressed on the second syllable.
Tomorrow has a stressed first syllable ("to-") and an unstressed second syllable ("-morrow").
No, "rejoiced" is not a word with a stressed syllable. The stress falls on the second syllable, "joiced."
Yes the word orphan has a stressed syllable. Orphan is stressed on the first syllable.
Yes the word language has a stressed syllable. Language is stressed on the first syllable.
Yes the word trophy has a stressed syllable. Trophy is stressed on the first syllable.
Yes, "deliver" is stressed on the second syllable: de-LIV-er.
It is not entirely clear whether you are asking which syllable is stressed or what the first syllable is. The stressed syllable is the first syllable: sev.