Meaning

noun the number of openings per linear inch of a screen; measures size of particles

noun contact by fitting together

noun the topology of a network whose components are all connected directly to every other component

originFrom Middle English mesche, from Old English masc (“net”) (perhaps influenced in form by related Old English mæscre (“mesh, spot”)), from the related Proto-Germanic *maskwǭ and *maskrǭ respectively, from Proto-Indo-European *mezg- (“to knit, twist, plait”). Akin to Old High German māsca (“mesh”), Old Saxon maska (“net”), Old Norse mǫskvi, mǫskun (“mesh”).

Etymology from Wiktionary, CC BY-SA 3.0