A surname from Irish.

(medicine) A kind of eruption upon the skin; lentigo; freckle. / A small lens. / (botany) A lenticel.

The act of declining or refusing. / (law) The legal privilege of a party, in certain circumstances, to decline the jurisdiction of a judge before whom the party's case sits. / (law) Recusal.

(dated, UK, dialect, Southern England) The common shelduck, Tadorna tadorna.