faoi deara

• fá dear, fá deara (Ulster)
• fé ndear, fé ndeár, fé ndeara (Munster)

From Old Irish fod·(ḟ)era (“causes it”, verb), from fo·fera (“to cause”) with infixed d- (“it”), reinterpreted as a prepositional phrase using fo (modern Irish faoi).^[1]

• IPA^(key): /fˠiːˈdʲaɾˠə/
• (Aran) IPA^(key): /fˠiːˈdʲaɾʲə/^[2][3]

The pronunciation with slender /ɾʲ/ is probably due to influence from aire (“attention, notice”).

faoi deara

1. causing, being the cause

   Is é faoi deara dom labhairt leat go gcuirim spéis i d’obair.

   What causes me to speak to you is that I am interested in your work.

   Tú féin faoi deara é.

   You are the cause of it yourself; you have brought it on yourself.

   Éad faoi deara a lán de. ― Jealousy has a lot to do with it.

   Is é Seán faoi deara é seo. ― This is Seán’s doing; this is due to Seán.

• cuir faoi deara (“to cause”)
• tabhair faoi deara (“to notice”)
• See also Category:Irish phrasal verbs formed with "faoi deara"

• Dinneen, Patrick S. (1904) “deara”, in Foclóir Gaeḋilge agus Béarla, 1st edition, Dublin: Irish Texts Society, page 230
• Ó Dónaill, Niall (1977) “deara”, in Foclóir Gaeilge–Béarla, Dublin: An Gúm, →ISBN