Portend, augur (4)
I believe the answer is:
bode
I believe this clue is a double definition.
'portend' is the first definition.
(synonyms)
'augur' is the second definition.
(synonyms)
(Other definitions for bode that I've seen before include "Presage" , "Augur (well, badly)" , "Augur, foreshadow" , "Waited" , "predict" .)