About: The root word” Umbr” used in many English words, is derived from Latin word “Umbra”, which means “Shade or shadow”. Various suffixes/prefixes are added to alter the meanings of derived words, but the root sense is always reposed.
Words:
Somber (adjective) - Dark or dull in colour or tone.
Adumbral (adjective) - Shadowy; shady.
Adumbrate (verb) - Foreshadow (a future event)/ overshadow.
Inumbrate (verb) - To shade or cast a shadow over.
Obumbrate (adjective) - Darkened by or as if by shadow.
Penumbra (noun) - The partially shaded outer region of the shadow cast by an opaque object.
Umbel (noun) - A flower cluster in which stalks of nearly equal length spring from a common centre and form a flat or curved surface, characteristic of the parsley family.
Umbellate (adjective) - Bearing, consisting of, or arranged in umbels.
Umbrage (noun) - Shade or shadow, especially as cast by trees./ offence or annoyance.
Umbrageous (adjective) - Affording shades/ spotted with shadows/inclined to take offense easily.
Umbrella (noun) - A device consisting of a circular canopy of cloth on a folding metal frame supported by a central rod, used as protection against rain.