nebbish NEB-ish, noun:
A weak-willed, timid, or ineffectual person.
Nebbish is from Yiddish nebekh, “poor, unfortunate,” of Slavic origin.
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Chase the Light
When Acadia National Park ranger Scout Johnson finds a weathered note near a remote lighthouse, she doesn't expect it to unravel a century-old mystery.
Another cool word and it so fits it's definition. I can't imagine any other word that could mean that.
That one just about qualifies to be in the category of onomatopoeia!