[Footnote I.21: Lofty] High and loud.
[Footnote I.22: The extravagant and erring spirit]
Extravagant is, got out of his bounds. Erring is here used in the sense of wandering.
[Footnote I.23: Laertes is unknown in the original story, being an introduction of Shakespeare's.
[Footnote I.24: Green;] Fresh.
[Footnote I.25: Wisest sorrow] Sober grief, passion discreetly reined.
[Footnote I.26: With a defeated joy,] i.e., with joy baffled; with joy interrupted by grief.
[Footnote I.27: Barr'd] Excluded—acted without the concurrence of.