Where does “sib-in-law” come from?
sib-in-law (English) comes from English SIB, from Middle English sib, from Old English sibb, from Proto-West Germanic sibbju, from Proto-Germanic sibjō, from Proto-Indo-European sebʰ-.
Ancestry of “sib-in-law”, step by step
sib-in-law traces back through two separate lines of ancestry.
via English SIB
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | SIB | Having kinship or relationship; related by same-bloodedness; kindred |
| 2 | Middle English | sib | having kinship; kinsmen; peace |
| 3 | Old English | sibb | kinship; peace |
| 4 | Proto-West Germanic | sibbju | relationship, kinship |
| 5 | Proto-Germanic | sibjō | relationship, kinship; friendship |
| 6 | Proto-Indo-European | sebʰ- | — |
via English in-law
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | in-law | A relative by marriage (or through affinity) |
| 2 | English | -in-law | Related through marriage |
| 3 | English | mother-in-law | The mother of one's spouse; A mother-in-law... |
| 4 | Middle English | moder in lawe | mother-in-law |