fíu

• fiyu
• ḥíu
• ḥiyu

From Latin fīlius.

fíu m (plural fíos)

1. son
2. child (son or daughter)

• fía

• fiu, fiú

From Proto-Celtic *wesus, from Proto-Indo-European *h₁wésus (“excellent”). Cognate to Welsh gwiw, Sanskrit वसु (vásu, “excellent, good, beneficent”).

• IPA^(key): [ɸʲiːu̯]

fíu

1. worthy, fitting
   • c. 800–825, Diarmait, Milan Glosses on the Psalms, published in Thesaurus Palaeohibernicus (reprinted 1987, Dublin Institute for Advanced Studies), edited and with translations by Whitley Stokes and John Strachan, vol. I, pp. 7–483, Ml. 44^c2

     .i. air bin fiu leu etir

     [As if] I was worthy at all in their opinion. [The use of air (“for, since”) in this gloss has long been considered illegible. Editors tend to replace the air with some other construction.]

2. (sometimes) worthwhile
3. worth, equivalent to [with accusative]
   • c. 800–825, Diarmait, Milan Glosses on the Psalms, published in Thesaurus Palaeohibernicus (reprinted 1987, Dublin Institute for Advanced Studies), edited and with translations by Whitley Stokes and John Strachan, vol. I, pp. 7–483, Ml. 63^d1

     amal ní bimmis fíu ní etir

     as if we were not worth anything at all

4. (following co) to the extent of, even including
5. (after comparative) than, as

• Irish: fiú
• Manx: feeu
• Scottish Gaelic: fiù