Gleaning (noun)

1. The act of collecting leftover crops from fields after they have been harvested.
2. The act of obtaining information or knowledge in small bits and pieces over time.

Origin:

The word gleaning is derived from the old english word "gleanian" which means "to gather" or "to collect".

Examples:

1. The poor would go gleaning in the fields after the harvest.
2. The farmer was not happy with the people gleaning in his fields.
3. Gleaning was a common practice in medieval times.
4. He spent hours gleaning information from different sources.
5. Gleaning was a way to gather food and prevent waste.