To find out the etymon of a name requires that you know well grammar. You brake down the name to syllables and the syllables to elements and than you see if the name is well synthezised and if it means anything. If it means something, than it can be given.

In order to do all these, you have to have a language that provides the right grammar with the apropriate ellements in its alphabet. Unfortunatelly, the English language is not the right language to do these things.

For example, the word FLORINA in Greek is written with a long O and that means that the O has two tempos(times) and one power. It has the power of the short O and the tempos of the short O and one more tempo of either the short A, or the short O, or the short E.

So, we have the syllables FLO + (AR,ER,OR)+ IN + A (I am using F where I should be using PH).

If you know the meaning of the elements of the language and you know how to put them together, than you know etymology.

If you read books of historical events written by old writters than you know some history. But history is not etymology and I am sorry to inform you that etymology is provided only by the common Greek language. All languages have words. so does Latin but Latin does not have the power of etymology because it lacks elements. All barbarian(non Greek) languages lack elements. So does the ficticious Indoeuropean. Greek is not a box filled with words. The Greek language is a mechanism of producing words.
It allways had been and it still is.