EnglishEdit

EtymologyEdit

Extracted from the word aromatic.

PrefixEdit

ar-

  1. (organic chemistry) Forming classification names for classes of organic compounds that contain a carbon skeleton and one or more aromatic rings.
    • 1900, Edgar Fahs Smith (English translator), R. Anschütz (German editor), Victor von Richter's Organic Chemistry: or, Chemistry of the Carbon Compounds, Third American Edition, Volume II, P. Blakiston's Son & Co., page 393:
      Potassium permanganate oxidizes ac-tetrahydronaphtylamine to o-hydrocinnam-carboxylic acid (p. 245); ar-tetrahydronaphthylamine, however, because of the oxidation of its amided benzene nucleus, is changed to adipic acid together with oxalic acid (B. 22, 767): []
    • 1919 January 10, C. J. West, abstract of G. Schroeter and K. Thomas, “Transformation of tetrahydronaphthalene (tetralin) in the animal body”; in American Chemical Society, Chemical Abstracts, Volume 13, Number 1, page 43:
      ar-Tetrahydro-α-carbamidonaphthalene, C11H14ON2, crystallized in square plates from alc., soften at 198° and melts at about 206° (quickly heated, at 212°).
    • 2006, Amit Arora, Aromatic Organic Chemistry, Discovery Publishing House (2007), →ISBN, page 173:
      1-Naphthylamine is reduced by sodium and isopentanol to ar-tetrahydro-1-naphthylamine; the prefix ar- is the abbreviation of aromatic and indicates that the four hydrogen atoms are not in the ring containing the amino-group: []

ReferencesEdit

AnagramsEdit


Aka-BeaEdit

PrefixEdit

ar-

  1. prefix for limbs or upright things

Old IrishEdit

EtymologyEdit

From Proto-Celtic *ɸare-. Prefix form of ar (in front of).

PrefixEdit

ar-

  1. for-, fore-

Derived termsEdit


WelshEdit

Etymology 2Edit

From Proto-Brythonic *are-, from Proto-Celtic *ɸare.[1]

PronunciationEdit

PrefixEdit

ar-

  1. on, above, sur-, super-, epi-
    ar- + ‎nofio (to swim) → ‎arnofio (to float)
    ar- + ‎ysgrif (writing) → ‎arysgrif (inscription, epigraph)
  2. near
    ar- + ‎lliw (colour) → ‎arlliw (shade)
    ar- + ‎môr (sea) → ‎arfor (coast)

Derived termsEdit

MutationEdit

Welsh mutation
radical soft nasal h-prothesis
ar- unchanged unchanged har-
Note: Some of these forms may be hypothetical. Not every
possible mutated form of every word actually occurs.

ReferencesEdit

  1. ^ J. Morris Jones, A Welsh Grammar, Historical and Comparative (Oxford 1913), § 156 i (6).
  • R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950-), “ar-”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies