run in the blood

run in the/(one's) blood

To be innate, as of a skill or quality. All of his relatives are doctors, too. Medical prowess just seems to run in their blood. That type of passion can't be taught—it has to run in the blood.
See also: blood, run
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

run in the blood

Also, run in the family. Be characteristic of a family or passed on from one generation to the next, as in That happy-go-lucky trait runs in the blood, or Big ears run in the family. The first term dates from the early 1600s, the second from the late 1700s.
See also: blood, run
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

run in the blood/family, to

To be characteristic of a family or peculiar to a nation, ethnic group, or other group. Richard Brinsley Sheridan used this expression in 1777 in The School for Scandal (3.3): “Learning that had run in the family like an heirloom!”
See also: blood, run, to
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer
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