Barely, adv.
1. Without covering; nakedly.
2. Without concealment or disguise.
3. Merely; only. R. For now his son is duke. W. Barely in title, not in revenue. Shak.
4. But just; without any excess; with nothing to spare ( of quantity, time, etc.); hence, scarcely; hardly; as, there was barely enough for all; he barely escaped.
Shades of meaning
Fernald has no entry of its own for barely; he lists it under but.
He lists it without comment; the entries above explain its neighbors.