Individually, adv.
1. In an individual manner or relation; as individuals; separately; each by itself. "Individually or collectively." Burke. How should that subsist solitarily by itself which hath no substance, but individually the very same whereby others subsist with it Hooker.
2. In an inseparable manner; inseparably; incommunicably; indivisibly; as, individuallyhe same. [Omniscience], an attribute individually proper to the Godhead. Hakewill.
Shades of meaning
Fernald has no entry of its own for individually; he lists it under apiece.
Where he writes about it:
Individually emphasizes the independence of the individuals; separately and severally still more emphatically hold them apart. — from apiece
If a company of laborers demand a dollar apiece, that is a demand that each shall receive that sum; if they individually demand a dollar, each individual makes the demand. — from apiece