Latin

in-

in, into, on, upon

Forms

in-
im- — Used before b, m, or p in Latin.
il- — Used before l in Latin.
ir- — Used before r in Latin.
en- — Developed in French in some words later borrowed into English.

Origin

Reconstructed Proto-Indo-European *en, ‘in.’

Note

Identical spellings can hide two different prefixes: this one indicates position or direction, while the other means ‘not.’

216 / 267

noun / verb

instrument

IN-struh-muhnt/ˈɪnstrəmənt/

A tool designed to carry out a skilled task.

The caliper is a precision instrument for measuring the metal cylinder.

Close still life of a precision brass caliper measuring the diameter of a small machined metal cylinder, instrument as practical tool.

Etymology

inLatinin, into, on, upon

+struLatinpile up, arrange, or build

+mentLatina means, result, or product

The building roots belong to a verb that also meant preparing or setting in order. Instrument names a means or implement for doing something, preserving the practical equipment sense of Latin instrumentum.

In context

Economics from Home2:44

in contrast a questionnaire is an instrument used solely to collect data whether in a survey or any other procedure

Surveys and Questionnaires

More examples

This instrument measures changes in air pressure.
Technicians instrument the test vehicle to record engine performance.
Clean the dental instruments after each procedure.

Forms

instrument · instruments · instrumented · instrumenting

instrumentation noun — Measuring and recording devices used together.

Similar words

tool: A broader term, including implements for simple manual tasks.
device: Emphasizes a particular function rather than skilled or precise use.
apparatus: Often refers to a complete equipment setup, not one tool.