the.com/sibling

your first rival, your built-in witness, the only person who remembers the crime with you

means a brother or sister — a person who shares one or both parents with you.

from From Old English 'sibling,' built from 'sibb' (kinship, relationship, peace among kin) plus the diminutive '-ling' — so literally 'a little relative.' That root 'sibb' is the same one buried in 'gossip,' which began as 'god-sibb,' a godparent, a person made kin to you by ritual. Curiously, 'sibling' nearly died out and survived only in dialects; it was revived by anthropologists in the early 20th century who wanted one tidy word for 'brother or sister' regardless of sex.

shared dna
Full siblings share about 50% of their genes
birth order
Firstborns score marginally higher on IQ tests
oldest bond
Sibling relationships often outlast both parents and spouses
deep history
Vertebrates have had siblings for over 500 million years
twin trick
Identical twins share fingerprintsbut still differ slightly
for instance

venus and serena williams — tennis champions who won 30 grand slam doubles titles together

liam and noel gallagher — oasis brothers whose feuds shaped 1990s britpop

kate and pippa middleton — sisters whose relationship was scrutinized during kate's royal marriage in 2011

the.com · every word