Where does “legbeszédesebb” come from?

legbeszédesebb (Hungarian) comes from Hungarian beszédesebb, from Hungarian beszédes, from Hungarian beszéd, from Proto-Slavic besěda, from Proto-Slavic bez, from Proto-Indo-European *bʰeǵʰs.

Ancestry of “legbeszédesebb”, step by step

Step	Language	Word	Meaning
1	Hungarian	beszédesebb	—
2	Hungarian	beszédes	talkative; informative
3	Hungarian	beszéd	speech
4	Proto-Slavic	besěda	sitting outdoors; an outdoor gathering;...
5	Proto-Slavic	bez	without
6	Proto-Indo-European	*bʰeǵʰs	—

Every word from Proto-Indo-European *bʰeǵʰs →Every word from Proto-Slavic bez →Every word from Proto-Slavic besěda →