the.com/infect
To gift someone something they neither asked for nor can return.
means To invade a living thing with a pathogen, or to spread something—disease, idea, mood—that takes hold and multiplies.
from From Latin inficere, to dip in or stain, built from in- plus facere, to make—because contagion was once imagined as a tainting, a dye in the blood.
Original senseMeant to taint or pollute, not sicken.
ComputingFirst viral code spread via floppy disk, 1980s.
FigurativeLaughter and yawns both infect crowds reliably.