"Searchability" is a concern that comes up often, but when I've investigated the real effectiveness of Google on searching for common short words as programming terms, it does a good job in practice:
- The first hits for kotlin by bring up Kotlin's property delegates feature, analogous to one being proposed here
- The first hits for swift some bring up discussion of Swift optionals
- Even common lisp the manages to find Common Lisp's
THEspecial form as the second hit.
Searchability and discoverability is a valid concern, but it looks like in practice, preemptively picking a long or unusual keyword solely for the sake of searchability is not really necessary.