Where does “hatásfok” come from?

hatásfok (Hungarian) comes from Hungarian fők, from Hungarian -k, from Hungarian -ö-, from Hungarian -d, from Middle Welsh -nt — 3rd person plural verb ending.

hatásfok (Hungarian): efficiency

Definitions

efficiency

Ancestry of “hatásfok”, step by step

hatásfok traces back through two separate lines of ancestry.

via Hungarian fők

Step	Language	Word	Meaning
1	Hungarian	fők	nominative plural of fő
2	Hungarian	-k	-s, -es; Denotes the first-person singular...
3	Hungarian	-ö-	linking vowel
4	Hungarian	-d	your; Used in the second-person singular definite...
5	Middle Welsh	-nt	3rd person plural verb ending

via Hungarian hatás

Step	Language	Word	Meaning
1	Hungarian	hatás	effect
2	Hungarian	hát	back; well; then, and, but
3	Proto-Uralic	kutte	ridge; six

Every word from Middle Welsh -nt →Every word from Hungarian -k →Every word from Hungarian -d →