Oxford English Dictionary (OED)
To be connected with in various relations; to form a part or appendage of; e.g. to be a member of a family, society, or nation, to be an adherent or dependent of, to be a native or inhabitant of a place; to be a dependency, adjunct, or appendage of something; to be one of a generation or time.
to be related or connected; to have a certain connection indicated or implied in the context; to fit a certain environment, group, etc.
Para, jämsides med.
En annan sort.
Bevingaren, 1980: 90
Even a parasite like me should be permitted to feed at the banquet of knowledge
I once posted comments as Bevingaren at guardian.co.uk
Note All parasitoids are parasites, but not all parasites are parasitoids
Parasitoid "A parasite that always ultimately destroys its host" (Oxford English Dictionary)
I live off you
And you live off me
And the whole world
Lives off everybody
See we gotta be exploited
By somebody, by somebody, by somebody
<I live off you>
Germ Free Adolescents
is a short step.
The word is
now a virus.