firmamental


fir·ma·ment

F0141100 (fûr′mə-mənt)n. The vault or expanse of the heavens; the sky.
[Middle English, from Old French, from Late Latin firmāmentum, from Latin, support, from firmāre, to strengthen; see firm2.]
fir′ma·ment′al (-mĕn′tl) adj.
Thesaurus
Adj.1.firmamental - relating to the firmament or upper regions