the.com/germicide

means A substance that kills germs — bacteria, viruses, and other microorganisms — used to disinfect surfaces, skin, or wounds.

from A straightforward 19th-century lab coinage welding Latin 'germen' (seed, sprout — the root that also gives us 'germ') to '-cide,' the suffix of killing borrowed from Latin 'caedere,' to cut down or slay, the same ending found in 'homicide' and 'pesticide.' It entered English alongside germ theory itself, once scientists accepted that invisible organisms, not bad air, caused disease — so the word is basically a tiny death sentence written in Latin.