[[logika]]

You mean just to add the category explicitly at the bottom? What good would that do? There are about 40+ suffix-like endings in Hungarian where the ending cannot be connected to the base word as we normally do with suffixes. So while there is no such thing as log + -ika, the -ika suffix/ending is clearly distinguishable in many words such as matematika, klinika, technika, etc. and is able to create new words, mostly from words freshly borrowed from other languages.

No, the category link was actually more problematic. If I understand the purpose of these categories correctly, they are supposed to reflect etymologies; "suffixed with -ika" implies that an "-ika" suffix was added to some other word. Which is not the case with these.

So after removing the template, I thought: if this is just a coincidence, why mention the suffix at all?

Sometimes the suffix is not immediately added to the entry, but to some version of its root. Although these 40+ established suffix-like endings are not always independent suffixes, they are important from the point of view of the Hungarian language, because they are – at least partly – productive. They are able to create (to naturalize) new words borrowed from foreign languages, and they can derive new words from an existing naturalized word. These elements evidently play role in the speech perception, so the morphology must render an account of them. Collecting them in categories can be useful for language learners. Seeing the same suffix in multiple examples will assists their recognition in other words.