Where does “لَفَظّ” come from?

لَفَظّ (Arabic) comes from Arabic ف, from Arabic نَفِدَ — to run out, to give out.

Ancestry of “لَفَظّ”, step by step

Step	Language	Word	Meaning
1	Arabic	ف	then, and then; and so, thus, hence, therefore;...
2	Arabic	نَفِدَ	to run out, to give out