DictionaryRoot: -er
English

-er

a person or thing that does something

Forms

  • -er
  • -r — Used after some bases ending in e.

Origin

Old English -ere, generally traced through Germanic to Latin -arius.

Note

It can name a tool as readily as a person. The comparison ending in taller has a different history.

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noun

trencher

TREN-cher/ˈtrentʃər/

A person or device that digs trenches.

The trencher cuts a narrow ditch for the water pipe.

Chain trencher cuts a narrow ditch.
Etymology

Old French trenchier meant “to cut,” and trench came to describe cutting a narrow channel into the ground. The tool-forming -er names the machine that performs this work.

In context

The Home Depot4:08
the forward position should be used to drive the trencher from one location to another and load it onto a trailer the machine trenches backwards toward the operator
Trencher Rental | The Home Depot Rental

More examples

  • We rent a trencher to install the sprinkler lines.
  • This small trencher fits through the garden gate.
  • The trenchers dig by hand where machines cannot reach.

Forms

trencher · trenchers

trench verb — To dig a long, narrow ditch.

Similar words

digger
Any person or machine that digs, not necessarily trenches.
excavator
Usually a machine for broader earthmoving, not specifically trench digging.