indéin

Etymology
Stokes reconstructs, from + the root of. However, modern scholarship holds that comes from  and that the n is part of the present suffix, not part of the root. On the other hand, Stokes’ etymology of lists 🇨🇬 and 🇨🇬 as cognates, meaning he associated it with  (the source of ). It is thus possible to reconstruct as the source of this as well as the Brythonic cognates (🇨🇬, 🇨🇬; 🇨🇬, 🇨🇬; 🇨🇬, 🇨🇬).

The form is expected to give, and that does appear as expected in 🇨🇬 and Modern 🇨🇬, suggesting that the spelling  (which occurs only once) may be a scribal error.

Alternatively, Pedersen reconstructs (giving  in our notation), which would be cognate with 🇨🇬, 🇨🇬, 🇨🇬, from. However, this connection is semantically less plausible than the connection with verbs meaning.

Noun

 * 1) anvil
 * indéin
 * indéin

Inflection
Inflected forms are not attested until Middle Irish.