Learn Turkish: İki takım tutkuyla kapıştı ama kimse yenilmedi. - The two teams clashed passionately, but nobody was defeated.

It is built from the root verb kapmak (to grab or snatch). The suffix -ış makes it a reciprocal verb, meaning an action done to or with each other. So kapışmak literally means to grab at each other, which translates smoothly to clashing, competing fiercely, or fighting.

How would I use this lesson's -(y)AsIyA (extreme limit) suffix with this sentence?

A very common word to pair with kapışmak is kıyasıya (ruthlessly or to the bitter end). It is formed from kıymak (to be merciless) plus the -asıya suffix. You could easily replace tutkuyla (passionately) with it to say İki takım kıyasıya kapıştı (The two teams clashed ruthlessly).

Can you break down the suffixes in yenilmedi?

The root is yenmek (to beat or defeat). We add the passive suffix -il to make yenilmek (to be defeated). Finally, it takes the negative suffix -me and the past tense -di. Remember that because the subject is kimse (nobody), Turkish grammar requires the verb to be negative.

Is adding -(y)la the standard way to make an adverb like passionately?