Where does “gelasma” come from?

gelasma (English) comes from Ancient Greek γέλασμα, from Ancient Greek -μᾰ, from Proto-Indo-European -mn̥ — Creates action nouns or result nouns from verbs.

gelasma (English): Laughter

Definitions

Laughter

Ancestry of “gelasma”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	γέλασμα	smile; cause of laughter
2	Ancient Greek	-μᾰ	"suffix forming a noun denoting the result of an...
3	Proto-Indo-European	-mn̥	Creates action nouns or result nouns from verbs

Every word from Proto-Indo-European -mn̥ →Every word from Ancient Greek -μᾰ →Every word from Ancient Greek γέλασμα →