Definitions:
" a practical activity, (in early use) especially one of the actions or activities which go to make up the practice of a craft or profession; (more generally) an action, a deed; (in later use, in plural) practicalities, practical matters.

a stratagem, a trick, a deception; (as a mass noun) machination, cunning, deceit. ""†to prove practics"": to indulge in or practise trickery (obsolete). scottish after middle english.

a customary usage or established procedure; (hence) a precedent; (in plural, now usually in form practicks) an unofficial compendium of decisions and precedents and often other encyclopaedic legal material; frequently in the titles of such works.

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