What is "plack"

Plack \Plack\, n. [F. plaque a plate of metal. Cf. Plaque.] A small copper coin formerly current in Scotland, worth less than a cent.

With not a plack in the pocket of the poet.
--Prof. Wilson.

Etymology 1 n. (lb en Scotland northern UK historical) Any of various small coins used in Scotland and the Netherlands during the 15th and 16th centuries, having a value in Scotland of four pennies Scots. Etymology 2

n. (lb en US) (misspelling of plaque English)

A plack was an ancient Scottish coin of the value of four Scots pennies or by 1707 one third of an English penny. It appears in the old song:

A’ that e’er my Jeanie had, My Jeanie had, my Jeanie had, A’ that e’er my Jeanie had Was ae bawbie There’s your plack, and my plack, And your plack, and my plack, And Jeanie’s bawbie.

The word is probably derived from the ancient Flemish coin, a plaquette, current before the introduction into the Netherlands of the French money reckoned by francs and centimes.

It can be found in the works of Robert Burns too:

Nae howdie gets a social night, or plack frae them (Scotch Drink) Stretch a joint to catch a plack, Abuse a brother to his back. (To Gavin Hamilton)

Plack is a Perl web application programming framework inspired by Rack for Ruby and WSGI for Python, and it is the project behind the PSGI specification used by other frameworks such as Catalyst and Dancer.

Plackup is a command line utility to run PSGI applications from the command line.

Plack may refer to:

• Plack (coin), an ancient Scottish coin
• Plack (software), a set of tools for running Perl-based Web applications and frameworks