ardu

Akkadian

Pronunciation

• (Old Babylonian) IPA^(key): /ˈar.du/

Noun

ardu m

1. Alternative form of wardum

Aromanian

Alternative forms

• ard

Etymology

Inherited from Vulgar Latin *ārdō, from Latin ārdeō. Compare Romanian ard.

Verb

ardu first-singular present indicative (third-person singular present indicative ardi or arde, past participle arsã)

1. to burn

Related terms

• arsu
• arshu
• ardiri / ardire

Catalan

Etymology

Borrowed from Latin arduus.

Pronunciation

• IPA^(key): (Central, Balearic) [ˈar.du]
• IPA^(key): (Valencia) [ˈaɾ.ðu]

Adjective

ardu (feminine àrdua, masculine plural ardus, feminine plural àrdues)

1. steep (of a near-vertical gradient)
2. arduous (needing or using up much energy)

Derived terms

• àrduament

Related terms

• arduïtat

Further reading

• “ardu” in Diccionari de la llengua catalana, segona edició, Institut d’Estudis Catalans.
• “ardu”, in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana, 2025
• “ardu” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.
• “ardu” in Diccionari català-valencià-balear, Antoni Maria Alcover and Francesc de Borja Moll, 1962.

Esperanto

Verb

ardu

1. imperative of ardi

French

Etymology

From Latin arduus (“high, steep; difficult”).

Pronunciation

• IPA^(key): /aʁ.dy/

• Audio:

  (file)

Adjective

ardu (feminine ardue, masculine plural ardus, feminine plural ardues)

1. (literally) steep (of a near-vertical gradient)

   Synonym: escarpé

2. (figuratively) arduous, needing or using up much energy, difficult

   Synonyms: difficile, pénible

Antonyms

• aisé

Further reading

• “ardu”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

Anagrams

• dura

Maltese

Pronunciation

• IPA^(key): /ˈar.du/

Noun

ardu m

1. Alternative form of lardu: lard (fat from the abdomen of a pig)

Megleno-Romanian

Alternative forms

• ard

Etymology

Inherited from Vulgar Latin *ārdō, from Latin ārdeō. Compare Romanian ard.

Verb

ardu

1. I burn.

Old Irish

Pronunciation

• IPA^(key): /ˈar͈du/

Adjective

ardu

1. inflection of ard:
   1. vocative/accusative plural masculine
   2. comparative degree

Mutation

Mutation of ardu

radical	lenition	nasalization
ardu (pronounced with /h/ in h-prothesis environments)	unchanged	n-ardu

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