umber /ˈʌmbə 
/ ▸ noun 1 [mass noun] a natural pigment resembling but darker than ochre, normally dark yellowish-brown in colour (raw umber) or dark brown when roasted (burnt umber). ▪ either of the colours of umber: [as modifier] the village is built entirely of crumbling umber limestone.
2 a brownish moth with colouring that resembles tree bark. Several species in the family Geometridae.
– ORIGIN mid 16th century: from French (terre d')ombre or Italian (terra di) ombra, literally ‘(earth of) shadow’, from Latin umbra ‘shadow’ or Umbra (feminine) ‘Umbrian’.
EnglishOxford Dictionary of English