For the last few years, I have been searching for an adjective that describes all connectors that fit inside a shrouded connector. I have not found a satisfactory one. I am about to go to press with a publication, which, until now, has a dummy placeholder for that adjective. I am desperate to replace that placeholder with an industry term.

To be clear, I am _not_ asking about the gender of the contacts:
* male
* female
* hermaphrodite
* genderless
I am asking about the gender of the housing:
* with walls
* fits inside a walled connector <--
this one* no walls
* self-mating
To show how difficult this has been for me, here are some attempts and suggestions I received over the years:
| Shrouded mate | The other mate | Notes |
| ----------- | ----------- | ----------- |
| Pocket | Boss | Mechanical terms |
| Mortise | Tenon | Carpentry terms |
| Shrouded | Harbored | My latest attempt |
| Shrouded | Enshrouded | The placeholder |
| Shrouding | Shrouded | Logical, but against present norms |
| Wrap | Jut | My first attempt |
| Female housing | Male housing | A German manufacturer |
| Cap | Receptacle | Molex, in a few cases |
| Receptacle | Plug | Also Molex, in other cases (*) |
| Socket | Plug | AC power connectors in some countries (*) |
(Sorry, I can't manage to format a table in this forum)
(*) Goes against IEEE definition of "plug".