Soil myself.

B12?

–Edit–

And on closer look also (at least) fatty acids, calcium and iodine.

One could argue that MacOS is basically BSD, but I guess that can be somewhat debatable.

Agglutinative/synthesizing language.

–Edit–

The way this works is by combining roots/stems, adding derivational suffixes and using transparent compounds. In effect you can create words for novel ideas that feel instantly clear to all the speakers of the language because the building blocks follow a set of familiar patterns and rules.

Pretty much the exact point of stagnation as we currently are.