venal

Concise Oxford English Dictionary © 2008 Oxford University Press:
venal /ˈviːn(ə)l/

▶adjective showing or motivated by susceptibility to bribery.

– derivatives
venality noun,
venally adverb.

– origin C17 (in the sense ‘available for purchase’): from L. venalis, from venum ‘thing for sale’.

usage: On the difference between venal and venial, see usage at venial.