Thusly, I propose:
Decide on a tag for unarmored exoskeletons, I suggest using “exosuit”.
Have power armor imply powered exoskeleton
Add the following description to “power armor”:
_A worn powered armored exoskeleton. For non-armored exoskeletons see [decided tag]. For piloted exoskeletons, see mecha
Add the following description to “powered exoskeleton”:
A worn powered exoskeleton, with or without armor. Insects don’t count.
Add the following description to [decided tag]:
_A worn powered unarmored exoskeleton, such as ones used for regaining mobility or strength assistance. For armored ones see power armor
Add the following description to mecha:
_A robot or exoskeleton piloted from inside that is too large to be worn by the user. For ones that can be worn and controlled directly by the pilot’s motions, see powered exoskeleton
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