The verb hamper means to hold back, impede or interfere with something in progress.

Synonyms are hinder, impede, clog, or obstruct.

The word origins from Middle English (14th century) hampren meaning “surround, imprison, confine, pack in a container, impede in motion or progress”.

It was the principal who hampered the student’s science project.

It wasn’t necessary to hamper the construction but they still did it anyway.

The strong typhoon caused the business’ launching to be hampered.