demin

English

Etymology

Clipping of demineralized.

Pronunciation

• IPA^(key): /dɪˈmɪn/, /diˈmɪn/

Noun

demin (uncountable)

1. (technical, usually attributively) Demineralized water.

   It's usually not safe to drink demin.

   • 1973 March, “Miniature conductivity meter”, in Control & Instrumentation, volume 5, number 3 (advertisement), London: Morgan-Grampian Ltd., →ISSN, →OCLC, page 63:

     There are many applications, for example it would be useful to fit it in series with ion exchange cartridges used in the laboratory or on 'demin' plants in industry.

   • 2015, L. Daal, F. de Vos, J. Soons, T. de Vries, “Membrane technologies for water treatment and reuse in the power industries”, in Angelo Basile, Alfredo Cassano, Navin K. Rastog, editors, Advances in Membrane Technologies for Water Treatment: Materials, Processes and Applications (Woodhead Publishing Series in Energy; 75), Sawston, Cambridgeshire: Woodhead Publishing, →DOI, →ISBN, page 610:

     For this reason, a demin line normally consists of a cation and an anion filter. If the water quality is not according to specifications after leaving these two filters, a mixed bed (anion and cation resins in one tank) is used.

Old Irish

Etymology

From Proto-Celtic *demenis (“certain”), of disputed origin. MacBain derives it from Proto-Indo-European *dʰh₁men- (“that which is established”), while Pedersen derives it from Proto-Celtic *dī- + a derivative of Proto-Indo-European *men- (“to change”), thus ‘unchangeable’.

Pronunciation

• IPA^(key): [ˈdʲeβ̃ʲinʲ]

Adjective

demin (equative demnithir, comparative demniu)

1. sure, certain
   • c. 800–825, Diarmait, Milan Glosses on the Psalms, published in Thesaurus Palaeohibernicus (reprinted 1987, Dublin Institute for Advanced Studies), edited and with translations by Whitley Stokes and John Strachan, vol. I, pp. 7–483, Ml. 112^b13

     Is demniu liunn a n-ad·chiam húa súlib ol·daas an ro·chluinemmar húa chlúasaib.

     What we see with (lit. from) the eyes is more certain to us than what we hear with (lit. from) the ears.

Declension

i-stem

singular	masculine	feminine	neuter
nominative	demin	demin	demin
vocative	demin
accusative	demin	demin
genitive	demin	demne	demin
dative	demin	demin	demin
plural	masculine	feminine/neuter
nominative	demni	demni
vocative	demni
accusative	demni
genitive	demin* demne
dative	demnib

*not when substantivized

Descendants

• Irish: deimhin
• Scottish Gaelic: deimhinn

Mutation

Mutation of demin

radical	lenition	nasalization
demin	demin pronounced with /ð(ʲ)-/	ndemin

Note: Certain mutated forms of some words can never occur in Old Irish.
All possible mutated forms are displayed for convenience.

Further reading

• Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “deimin”, in eDIL: Electronic Dictionary of the Irish Language
• MacBain, Alexander, Mackay, Eneas (1911) “demin”, in An Etymological Dictionary of the Gaelic Language‎, Stirling, →ISBN
• Pedersen, Holger (1909) Vergleichende Grammatik der keltischen Sprachen [Comparative Grammar of the Celtic Languages] (in German), volume I, Göttingen: Vandenhoeck und Ruprecht, →ISBN, page 174