artefact or artifact /ärˈti-fakt/

1. A thing made by human workmanship
2. Any non-natural feature accidentally introduced, eg during a scientific study

• stumblers
• stumbles
• stumblier
• stumbliest
• stumbling
• stumbling-block
• stumbling-blocks
• stumblingly
• stumbly
• stumer
• stumers
• stumm
• stummed
• stummel
• stummels
• stumming
• stump
• stumpage
• stumpages
• stumped
• stumper
• stumpers
• stumpier
• stumpies
• stumpiest