from 726; rapacious:

KJV-- extortion, ravening.

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726 harpazo (har-pad'-zo);

from a derivative of 138; to sieze (in various applications):

KJV-- catch (away, up), pluck, pull, take (by force).

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138 haireomai (hahee-reh'-om-ahee);

probably akin to 142; to take for oneself, i.e. to prefer:

KJV-- choose. Some of the forms are borrowed from a cognate hellomai (hel'-lom-ahee); which is otherwise obsolete.