gravest

1. To dig.
2. To carve or cut, as letters or figures, on some hard substance; to engrave.
3. To carve out or give shape to, by cutting with a chisel; to sculpture.

   to grave an image

4. To impress deeply (on the mind); to fix indelibly.
5. To entomb; to bury.
6. To write or delineate on hard substances, by means of incised lines; to practice engraving.

1. Characterised by a dignified sense of seriousness; not cheerful.
2. Low in pitch, tone etc.
3. Serious, in a negative sense; important, formidable.
4. Influential, important; authoritative.

verb

To clean, as a vessel's bottom, of barnacles, grass, etc., and pay it over with pitch — so called because graves or greaves was formerly used for this purpose.