díriuch

Etymology
From, from , from , from. is a precise cognate, both having generalised zero grade in the root. 🇨🇬, 🇨🇬, and 🇨🇬 are also related.

Because u-stem adjectives are rare in Old Irish, it is unlikely to have been borrowed from, but the addition of the intensive prefix could have been influenced by the Latin term of the same meaning.

Adjective

 * 1) straight
 * 2) direct
 * 3) straightforward
 * 4) upright