grave

Concise Oxford English Dictionary © 2008 Oxford University Press:
grave1

▶noun a hole dug in the ground to receive a coffin or corpse.

■ (the grave) death.

– phrases
dig one's own grave do something foolish which causes one's downfall.
turn (N. Amer. also roll over or turn over) in one's grave (of a dead person) be thought of as angry or distressed about something had they been alive.

– origin OE græf, of Gmc origin.

Concise Oxford English Dictionary © 2008 Oxford University Press:
grave2

▶adjective

• 1 giving cause for alarm or concern.

• 2 solemn or serious.

– derivatives
gravely adverb,
graveness noun.

– origin C15: from OFr. grave or L. gravis ‘heavy, serious’.

Concise Oxford English Dictionary © 2008 Oxford University Press:
grave3

▶verb (past part. graven or graved)

• 1 archaic engrave (an inscription or image) on a surface.

• 2 literary fix indelibly in the mind.

– origin OE grafan ‘dig’, of Gmc origin; rel. to grave1 and groove.

Concise Oxford English Dictionary © 2008 Oxford University Press:
grave4

▶verb historical clean (a ship's bottom) by burning off the accretions and then tarring it.

– origin ME: perh. from Fr. dial. grave, var. of OFr. greve ‘shore’.