metastasize (verb) – to be transmitted, transferred or spread to other parts of the body
BREAKDOWN: META- (change) + STAS- (to stand) + -IZE (to make)
— metastasis is transmission of a disease from one point in the body to another
This word is built on the root STAS-, which means to stand or standing still.
Common STAS- words include ecstasy, system, and thermostat.
More esoteric STAS- words include ananastasia and isostasy.