perk1
v.
(
perk someone up or perk up)
make or become more cheerful or lively.
Etymology
ME (in the senses ‘perch’ and ‘be lively’): perh. from an OFr. dial. var. of percher ‘to perch’.
perk2
n.
informal a benefit to which one is entitled as an employee or shareholder of a company.
▸an advantage or benefit following from a particular situation.
Etymology
C19: abbrev. of perquisite.
perk3
v.
informal (with reference to coffee) percolate.