Apprenticeship (noun)

1. A period of training, typically in a trade or craft, during which a person works for a skilled worker in order to learn a particular skill or trade.
2. A system or method of training someone in a trade or profession through on-the-job training and instruction.

Origin:

From the middle english word apprentise meaning "a beginner" or "a novice".

Examples:

1. He completed a four-year apprenticeship as a carpenter.
2. The word "apprenticeship" comes from the Middle English word apprentise meaning "a beginner" or "a novice".
3. She is currently in an apprenticeship program for graphic design.
4. The company offers apprenticeships in various trades.
5. He began his apprenticeship at the age of 16.