Where does “plaguicida” come from?

plaguicida (Spanish) comes from Spanish plaga, from Latin plāga, from Latin plagius, from Ancient Greek πλάγιος, from Ancient Greek -ῐος, from Proto-Indo-European -yós — Creates adjectives from noun or verb stems.

plaguicida (Spanish): pesticide

Definitions

pesticide

Ancestry of “plaguicida”, step by step

Step	Language	Word	Meaning
1	Spanish	plaga	plague; nuisance
2	Latin	plāga	plague, misfortune
3	Latin	plagius	—
4	Ancient Greek	πλάγιος	placed sideways, slanting, aslant
5	Ancient Greek	-ῐος	belonging to; of”, “belonging to”, “pertaining to
6	Proto-Indo-European	-yós	Creates adjectives from noun or verb stems

Every word from Proto-Indo-European -yós →Every word from Ancient Greek -ῐος →Every word from Ancient Greek πλάγιος →