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Manx ard
← Proto-Celtic *ardwos (inherited)
← Welsh ardd (cognate)
← Proto-Indo-European *h₃erdʰ- (root)
← Proto-Indo-European *h₃erdʰwós (inherited)
← Proto-Indo-European *h₃erdʰ- (mention)
← Latin arduus (cognate)
← Old Irish ard (inherited)

→ Manx ard-duic (prefix)
→ Manx ard-schoill (prefix)
→ Manx bun-ard (prefix)
→ Manx ard-hiarn (prefix)
→ Manx ard-venainshtyr (prefix)
→ Manx ard-ven-ynsee (prefix)
→ Manx ard-vreageyder (prefix)
→ Manx ard-vriw (prefix)
→ Manx ard-voayrd (prefix)
→ Manx ard-vinkeyr (prefix)
→ Manx ard-straid (prefix)
→ Manx ard-studeyr (prefix)
→ Manx ard-choyrlagh (prefix)
→ Manx ard-er-oik (prefix)
→ Manx ard-cheirdagh (prefix)
→ Manx ard-jaghin (prefix)
→ Manx ard-chreeoil (confix)
→ Manx ard-chiannoort (prefix)
→ Manx ard-valley (prefix)
→ Manx ard-vardoonagh (prefix)
→ Manx ard-çhiarn (prefix)
→ Manx ard-fillym (prefix)
→ Manx ard-aggindagh (prefix)
→ Manx ard-chaillagh (prefix)
→ Manx ard-chaillagh ghoo (prefix)
→ Manx ard-chlagh (prefix)
→ Manx ard-chlaare (prefix)
→ Manx ard-veinn (prefix)
→ Manx ard-ven reill (prefix)
→ Manx ard-ven-ghuic (prefix)
→ Manx ard-ree (prefix)
→ Manx ard-venrein (prefix)
→ Manx ard-vinishter (prefix)
→ Manx ard-vlastal (prefix)
→ Manx ard-reeriaght (prefix)
→ Manx ard-laa (prefix)
→ Manx ard-vainshtyr (prefix)
→ Manx ard-vooadys (confix)
→ Manx ard-ynseyder (prefix)
→ Manx ard-charrey (prefix)