Word Forms of "penumbra" (4 forms)

Noun

Form	Word
Alternative, Obsolete, Rare	pænumbra
Obsolete, Plural	penumbræ
Plural	penumbrae
Plural	penumbras

Alternative, Obsolete, Rarepænumbra

Obsolete, Pluralpenumbræ

Pluralpenumbrae

Pluralpenumbras

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.