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Old Irish[edit]

Alternative forms[edit]


From Proto-Celtic *ad-kʷiso-, from Proto-Indo-European *kʷeis- (observe) (compare Sanskrit चायति (cāyati, perceives)) or Proto-Indo-European *kʷes- (compare Sanskrit चक्षति (cakṣati, sees)). The deuterotonic perfect forms and the present indicative ro-form ad·rodarcar are from the Proto-Celtic stem *derk-, from Proto-Indo-European *derḱ- (to see); cognate with Sanskrit दृश् (dṛś), Greek δέρκομαι (dérkomai), Old English torht (bright, clear), Albanian dritë (light).



ad·cí (prototonic ·aicci, verbal noun aicsiu)

  1. see, behold
  2. perceive
  3. (in passive) seem, appear
    • c. 750, Preface to Saint Patrick's Breastplate, published in Thesaurus Palaeohibernicus, (1901–03, Cambridge University Press; reprinted 1975, 1987, Dublin Institute for Advanced Studies), edited and with translations by Whitley Stokes and John Strachan, 2:354–58:
      conid annsin atchessa fiad lucht na netarnade comtis aige alta ⁊ iarróe ina ndiaid .i. Benen
      And then it appeared before those lying in ambush that they were wild deer with a fawn (Benén) following them.

For more examples of usage of this term, see the citations page.


Usage notes[edit]

The present-tense ro-forms ·airciu, ad·rodarcar, etc., mean “can see”, “can be seen”, etc.

Derived terms[edit]



Old Irish mutation
Radical Lenition Nasalization
ad·cí ad·chí ad·cí
pronounced with /-ɡ(ʲ)-/
Note: Some of these forms may be hypothetical. Not every
possible mutated form of every word actually occurs.