Where does “intrathecal” come from?
Intrathecal derives from English intra- and English theca, from Ancient Greek θήκη meaning sheath or case, ultimately from the Proto-Indo-European root dʰeh₁- meaning to put or place.
intrathecal (English): Delivered into the spinal canal (intrathecal space surrounding the spinal cord), e.g. a spinal anesthesia
Definitions
- Delivered into the spinal canal (intrathecal space surrounding the spinal cord), e.g. a spinal anesthesia
Ancestry of “intrathecal”, step by step
intrathecal traces back through two separate lines of ancestry.
via English AL
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | AL | Initialism of assembly language; Initialism of... |
| 2 | Dutch | al | all, all of; already; yet |
| 3 | Middle Dutch | al | all, all of; completely; even though, no matter... |
| 4 | Old Dutch | āl | — |
| 5 | Proto-West Germanic | all | all |
| 6 | Proto-Germanic | allaz | all |
| 7 | Proto-Indo-European | h₂él- | to grow, nourish |
via English theca
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | theca | Any external case or sheath; The pollen-producing... |
| 2 | Latin | thēca | a case, envelope, sheath |
| 3 | Ancient Greek | θήκη | box, chest; grave, tomb; sword sheath |
| 4 | Ancient Greek | τίθημι | I put, place, set; I make, cause to be; I make |
| 5 | Proto-Indo-European | dʰeh₁- | to do, put, place |