Where does “szabadúszók” come from?

szabadúszók (Hungarian) comes from Hungarian szabadúszó, from Hungarian úszó, from Hungarian úszik, from Proto-Uralic uje-, from Hungarian -sz, from Proto-Slavic sь, from Proto-Balto-Slavic śis, from Proto-Indo-European ḱís — resin, gum; to say, speak.

Ancestry of “szabadúszók”, step by step

StepLanguageWordMeaning
1Hungarianszabadúszófreelance; freelancer
2Hungarianúszóswimming (living being), floating (dead body, object)
3Hungarianúszikto swim; to float
4Proto-Uralicuje-to swim
5Hungarian-szUsed to form the second-person singular present...
6Proto-Slavicthis
7Proto-Balto-Slavicśisthis here
8Proto-Indo-Europeanḱísthis
9Proto-Indo-EuropeanḱeDeictic particle, here; Post-positional...
10Middle Englishkyt
11Germankittputty certain kinds of cement used for fixing e.g. window panes
12Old High Germankuti
13Proto-West Germanickwidugum, resin
14Proto-Germanickweduzresin
15Proto-Indo-Europeangʷet-resin, gum; to say, speak
Every word from Proto-Indo-European gʷet-