scaffold

nouns

a platform from which criminals are executed (hanged or beheaded)
is a part of
an instrument designed and used to take the life of a condemned person
is a type of (narrower)
a raised horizontal surface
"the speaker mounted the platform"
a temporary arrangement erected around a building for convenience of workers
is a part of
a system of scaffolds
is a type of (narrower)
an orderly grouping (of things or persons) considered as a unit; the result of arranging
"a flower arrangement"

verbs

provide with a scaffold for support
"scaffold the building before painting it"
is derived from
is a type of (narrower)
be the physical support of; carry the weight of
"The beam holds up the roof"; "He supported me with one hand while I balanced on the beam"; "What's holding that mirror?"