Part of speech: Noun
judiciousness in avoiding harm or danger
Example: he exercised caution in opening the door; he handled the vase with care
Part of speech: Noun
planning or plotting in advance of acting
Premeditation, Precaution, Forethought, Caution, Care
The word "forethought" comes from Old English *foreþōht, which comes from Middle English forethouht.
fore – A related word in the same word family.
thought – A related word in the same word family.
forethink – A related word in the same word family.
The same PIE root can look completely different in modern languages due to thousands of years of sound changes.