Where does “leghálátlanabbul” come from?

leghálátlanabbul (Hungarian) comes from Hungarian hálátlan, from Hungarian -tlan, from Hungarian -talan, from Hungarian -n — on. Used to form the superessive case; Added to...

Ancestry of “leghálátlanabbul”, step by step

Step	Language	Word	Meaning
1	Hungarian	hálátlan	ungrateful, unappreciative, thankless; thankless
2	Hungarian	-tlan	-less, un-, dis-. A privative suffix added to a...
3	Hungarian	-talan	-less, un-, dis-. A privative suffix added to a...
4	Hungarian	-n	on. Used to form the superessive case; Added to...

Every word from Hungarian -n →Every word from Hungarian -talan →Every word from Hungarian -tlan →