Where does “加答兒” come from?

加答兒 (Chinese) comes from Japanese カタル, from Dutch catarre, from Middle French catarrhe, from Latin catarrhus, from Ancient Greek κατάρροος, from Ancient Greek καταρρέω, from Ancient Greek κᾰτᾰ-, from Ancient Greek κατά — to be/become dry; to burn, to glow; hearth.

加答兒 (Chinese): catarrh; mucous membrane inflammation

Definitions

catarrh; mucous membrane inflammation

Ancestry of “加答兒”, step by step

Step	Language	Word	Meaning
1	Japanese	カタル	catarrh
2	Dutch	catarre	catarrh, chronic inflammation of the mucous...
3	Middle French	catarrhe	—
4	Latin	catarrhus	catarrh, rheum
5	Ancient Greek	κατάρροος	catarrh, head cold
6	Ancient Greek	καταρρέω	flow down; stream, rush; drip
7	Ancient Greek	κᾰτᾰ-	fully; down; denoting motion downwards
8	Ancient Greek	κατά
9	Ancient Greek	καταστερίζω	to place among the stars; I put among the stars
10	Ancient Greek	ἀστήρ	a celestial body; illustrious person; starfish
11	Proto-Hellenic	astḗr	star
12	Proto-Indo-European	h₂stḗr	star
13	Proto-Indo-European	h₂eHs-	to be/become dry; to burn, to glow; hearth

Every word from Proto-Indo-European h₂eHs- →Every word from Proto-Indo-European h₂stḗr →Every word from Proto-Hellenic astḗr →