Where does “photocoupling” come from?
photocoupling (English) comes from English coupling, from Middle English couplynge, from Middle English couplen, from Old French coupler, from Latin cōpulō, from Latin cōpula, from Latin coapula, from Latin apio — the god Apis.
photocoupling (English): coupling activated by light
Definitions
- coupling activated by light
Ancestry of “photocoupling”, step by step
photocoupling traces back through two separate lines of ancestry.
via English coupling
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | coupling | present participle of couple; act of joining... |
| 2 | Middle English | couplynge | The creation of a romantic or marital bond or a marriage |
| 3 | Middle English | couplen | To marry or wed; to join in a matrimonial union;... |
| 4 | Old French | coupler | — |
| 5 | Latin | cōpulō | to bind or tie together, unite, join, couple |
| 6 | Latin | cōpula | a bond, tie, band or other connecting item |
| 7 | Latin | coapula | — |
| 8 | Latin | apio | dative singular of apium; ablative singular of... |
| 9 | Latin | apium | parsley; celery; genitive plural of apis |
| 10 | Latin | Apis | A seaport town of Egypt situated at the borders with Marmarica |
| 11 | Ancient Greek | Ἄπις | — |
| 12 | Coptic | ϩⲁⲡⲉ | the Apis bull, a bull worshipped as a herald of the gods (first Ptah, then Osiris, then Atum) |
| 13 | Egyptian | ḥp | the god Apis |
via English photo
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | photo | A photograph; A photo finish; To take a... |
| 2 | English | photography | The art and technology of producing images on... |
| 3 | French | photographie | photography; photograph |
| 4 | Ancient Greek | φωτο- | — |
| 5 | Ancient Greek | φῶς | Attic form of φᾰ́ος |
| 6 | Proto-Hellenic | pʰáos | — |
| 7 | Proto-Indo-European | bʰéh₂os | — |
| 8 | Proto-Indo-European | bʰeh₂- | to shine, glow light; to speak, say |
| 9 | Proto-Indo-European | bʰeh₂-s-ri- | — |