Reckoner

Reckoner is a noun with several related meanings centered on calculation. The primary sense refers to a person who calculates or tallies, such as an accountant, scribe, navigator, or astronomer who performs numerical work. In some historical contexts, reckoners were professionals responsible for computing figures, keeping accounts, or performing complex arithmetic for projects, markets, or scientific observations. The term can also denote a calculating instrument or device in older usage, though this sense is less common today.

Etymology and usage: Reckoner derives from the verb reckon, meaning to count, compute, or estimate. The agent noun form reckoner indicates someone who does the reckoning. In medieval and early modern English, reckoners appeared in administrative, mercantile, and scholarly settings, reflecting the essential role of precise calculation before widespread mechanical calculators.

Modern usage: In contemporary English, reckoner is largely literary or historical. It may be used to evoke a historical atmosphere or to describe a role in fiction or fantasy where numerical or evaluative work is central. Outside of these contexts, more common terms such as calculator, accountant, or estimator are typically preferred.

In culture: Reckoner is also the title of a song by the English rock band Radiohead, from their 2007 album In Rainbows. The track is known for its ethereal arrangement and reflective lyrics, exemplifying how the term has permeated popular culture beyond its original meanings.