A person who builds, repairs, or maintains dikes and embankments.
From 'dike' plus the agent suffix '-er' (one who does something). This occupational noun follows the standard English pattern of creating job titles by adding '-er' to the tool or object involved.
Dykers were the civil engineers of their time—so respected in the Netherlands that entire families carried the name across generations. Without dykers' expertise, much of modern Holland would literally not exist above sea level!
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