-gen

1.
a combining form meaning “that which produces,” used in the formation of compound words:
endogen; hydrogen.
Origin
< French -gène ≪ Greek -genēs born, produced; akin to Latin genus, kin
British Dictionary definitions for -gen

-gen

suffix
1.
producing or that which produces: hydrogen
2.
something produced: carcinogen
Word Origin
via French -gène, from Greek -genēs born
Word Origin and History for -gen

word-forming element technically meaning "something produced," but mainly, in modern use, "thing that produces or causes," from French -gène (18c.), from Greek -genes "born of, produced by," related to genos "birth" (see genus). Originally in late 18th century chemistry and probably reflecting misunderstanding of -genes, as though it meant "that which produces."

-gen in Medicine

-gen or -gene
suff.

  1. Producer: androgen.

  2. One that is produced: phosgene.