Where does “anaphylaxic” come from?

anaphylaxic (English) comes from English anaphylaxis, from French anaphylaxie, from Ancient Greek φύλαξις, from Ancient Greek -σῐς, from Ancient Greek -τις, from Proto-Indo-European -tis — Derives abstract/action nouns from verb roots.

anaphylaxic (English): Of or pertaining to anaphylaxis; anaphylactic

Definitions

Of or pertaining to anaphylaxis; anaphylactic

Ancestry of “anaphylaxic”, step by step

anaphylaxic traces back through two separate lines of ancestry.

via English anaphylaxis

Step	Language	Word	Meaning
1	English	anaphylaxis	Extreme sensitivity to a substance such as a...
2	French	anaphylaxie	anaphylaxis
3	Ancient Greek	φύλαξις	an act of watching, guarding; a security
4	Ancient Greek	-σῐς	"suffix forming nouns"
5	Ancient Greek	-τις	retained after dentals
6	Proto-Indo-European	-tis	Derives abstract/action nouns from verb roots

via English ic

Step	Language	Word	Meaning
1	English	ic	related or pertaining to; having the character of

Every word from Proto-Indo-European -tis →Every word from Ancient Greek -σῐς →Every word from Ancient Greek φύλαξις →