Question

what is accounts & accountency

Answer 1

An account  refers to assets, liabilities, income.

Accountancy is the measurement, processing and communication of financial information about economic entities.

Answer 2

Accounting has different meanings and in one sense refers to the process of keeping or maintaining financial records; while accountancy, according to OED, specifically refers to the duties(which consists of accounting, bookkeeping, auditing, etc.) or profession of an accountant.