-form

From Latin -fōrmis (“having the form of”), from fōrma (“a form, contour, figure, shape, appearance, looks”).

-form

2. Having the shape or form of; looking like.

   vermiform (“shaped like a worm”)

• -iform (with interfix -i-)

• (looking like): quasi-, para-, -oid, -esque, -ish, -ly, -some, -y, (restricted to casual registers) -ass, (forms adjectives from nouns only) -like

• -iformes

From formic, from Latin formica (“ant”).

-form

2. Related to formic acid in some way.

   chloroform

• MoRF, from