Fledged (adjective)

1. Having reached full growth or maturity, especially in relation to birds having fully developed feathers.
2. Having gained experience or knowledge in a particular area.
3. Having reached the stage of full development or readiness, especially in relation to new technology or ideas.

Origin:

The word 'fledged' is derived from the old english word 'fledg' which means 'to fly' and has been in use since the 15th century.

Examples:

1. The young bird was now fully fledged and ready to fly from its nest.
2. She was a fledged journalist with many years of experience in the field.
3. The fledged startup had developed a new technology that revolutionized the industry.
4. The fledged artist had mastered several techniques and was ready to showcase his work.
5. The fledged athlete had trained for years and was now ready to compete at the highest level.