From a- +‎ ruga.

• ruga

• IPA^(key): (Central, Balearic) [əˈru.ɣə]
• IPA^(key): (Valencia) [aˈru.ɣa]

• Audio (Catalonia):

  (file)

arruga f (plural arrugues)

1. wrinkle, crease

   Ja li han sortit arrugues a la cara. ― Wrinkles have already appeared on his/her face.

• arrugar

• rua

• “arruga”, in Diccionari de la llengua catalana [Dictionary of the Catalan Language] (in Catalan), second edition, Institute of Catalan Studies [Catalan: Institut d'Estudis Catalans], 2007 April
• “arruga”, in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana, 2025.
• “arruga” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.
• “arruga” in Diccionari català-valencià-balear, Antoni Maria Alcover and Francesc de Borja Moll, 1962.

arruga

1. inflection of arrugar:
   1. third-person singular present indicative
   2. second-person singular imperative

• eruga, ruga, berruca, ferruga, orruca, verruga, rugaruga

From Latin eruca.

arruga f (plural erugas)

1. Variant of ruga

• IPA^(key): /aˈruɡa/ [aˈru.ɣ̞a]
• Rhymes: -uɡa
• Syllabification: a‧rru‧ga

Deverbal from arrugar.

arruga f (plural arrugas)

1. wrinkle

   Hyponym: patas de gallo

arruga

1. inflection of arrugar:
   1. third-person singular present indicative
   2. second-person singular imperative

• “arruga”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8, Royal Spanish Academy [Spanish: Real Academia Española], 2024 December 10