Where does “legjárhatatlanabb” come from?

legjárhatatlanabb (Hungarian) comes from Hungarian járhatatlanabb, from Hungarian járhatatlan, from Hungarian -hatatlan, from Hungarian -hat, from Hungarian hát, from Proto-Uralic kutte — ridge; six.

Ancestry of “legjárhatatlanabb”, step by step

StepLanguageWordMeaning
1Hungarianjárhatatlanabb
2Hungarianjárhatatlanimpassable
3Hungarian-hatatlanun-... -able, ir-... -able
4Hungarian-hatcan, could, may, might, be allowed to. Added to...
5Hungarianhátback; well; then, and, but
6Proto-Uralickutteridge; six
Every word from Proto-Uralic kutteEvery word from Hungarian hátEvery word from Hungarian -hat