*skel-

Meanings

1.

being under obligation

(The existence of the root is not 100% certain. It might just be a Germanic root after all. Notable English members are "shall" and "should". )

Word Family

Root: *skel-

The root is not 100% certain and it might just be a Germanic or Northern European root.
The core idea in either case was:

being under an obligation

The only family members in English are shall and its version should. The German side of the tree is a bit bigger with Schuld being the word for debt and also guilt. Which at their core are both an obligation.

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