What does decollating mean?
Decollating is the present participle of the verb decollate, which carries two distinct meanings. Its dominant modern sense is technical: to separate individual sheets from a stack of continuous-form printed paper, tearing them apart along perforations after a batch print run. This usage belongs mainly to the era of dot-matrix printers and fanfold stationery, and survives in office-machinery terminology such as the decollator, a device that performs the task automatically. A much older and now rare sense means to behead or decapitate, inherited directly from Latin. The word derives from Latin decollare, formed from de- ('off') and collum ('neck') — so both senses involve removing one thing from another. Because of its similarity to collate, which describes assembling documents in order, decollating can cause confusion; the two are essentially opposites. Today the word is encountered mostly in printing, data-processing, and archival contexts, where it retains a precise, professional flavour.
To separate individual sheets from a stack of continuous-form printed paper by tearing them apart along perforations.
"He was still decollating the payroll printouts when the office closed."
Technical term associated with mainframe batch printing and impact printers; increasingly dated.
To behead; to decapitate.
"The executioner's grim task was decollating the condemned before a silent crowd."
Rare and chiefly historical or literary.
In printing jargon, 'decollating' simply means tearing your printouts apart along the perforations — but its older meaning was far more gruesome: beheading.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of decollating
Decollating comes from the verb decollate, borrowed from Latin decollare, meaning 'to behead', formed from de- ('away, off') plus collum ('neck'). The beheading sense entered English in the early modern period, appearing in formal and historical writing about executions. The paper-processing sense developed later, in twentieth-century office and data-processing jargon, applying the same idea of separation to tearing continuous-form printouts apart along their perforations. It shares the root collum with words such as collar, decolletage, and accolade (originally an embrace around the neck).
Related word forms
How decollating is actually used
The paper-separating sense is technical vocabulary from mainframe and impact-printer environments and sounds dated today, as continuous stationery has largely disappeared; it remains familiar in office-equipment contexts (a machine that does this is a decollator). The beheading sense is rare, formal, and largely historical.
Easily confused with decollating
Collating means assembling sheets or parts into an ordered sequence, while decollating means the opposite operation of separating stacked or continuous-form sheets apart.