Betoken (verb)

1. To serve as a sign or indication of something else.
2. To indicate or signify something.

Origin:

The word "betoken" is derived from the old english word "bēotian" which means to signify or indicate, it is used to refer to something that serves as a sign or indication of something else.

Examples:

1. The dark clouds betoken a storm.
2. His silence betokened his anger.
3. The red sky in the morning betokens fair weather.
4. The empty seats betokened a lack of interest in the lecture.
5. The flowers betoken spring.