Etymograph

English

microarray

From micro- + array.

A compound of micro- + array

Ancient Greek μῑκρός ‘small’

English micro-

Anglo-Norman arraier

Middle English arrayen

English array

Today it means

noun Any of several devices, containing a two-dimensional array of small quantities of biological material, used for various types of assay; the assay itself

Language periods are conventional ranges, not dates for this word.

Etymograph / microarray