In Celtic Spain , Arcobriga may be aircur brígh , Scot G airc brigha "peak pitch/ power".
Welsh bri, dignity, rank, Cornish bry, Breton bri, respect, *brîga, *brîgo-. Spanish brigand.
"Pitch : A level of the intensity of something, especially a high level".
Latin arcanus "secret, hidden, concealed," from arcere "to close up, enclose, contain," from arca"chest, box, place for safe-keeping," from PIE root *ark- "to hold, contain, guard" source also of Greek arkos "defense," arkein "to ward off" .
This guy from west of Arcobriga has a peak hat. I can't post a link . If you google -
A priest with an apron and a conical cap holding a jug and a bird over an altar in order to perform a sacrifice. Museo Numantino, Soria. (Sopeña 1995: Figs. 10-11). west of Arcobriga in Zaragoza. - it's 1/4 down the page.
and this is a peak from Arcobriga:
google - Scottish Archaeological Research Framework arcobriga vase -. click on Images
It has 2 pillars with arch and a tree in the centre.
" Iberian script, BRIGANT_N (or PRIKANT_N, as Iberic script does not distinguish voiced and unvoiced consonants) inscribed on a Celtiberian coin, of a Celtiberian goddess."_ Garret Olmstead.
Brigantia is a goddess in Scotland and England , holding a globe . In Lebor Gabála Érenn, Breogán founded Brigantia tower for his son Íth who glimpses Ireland to invade and settle it. This may be the origin of round towers.
On the Arcobriga vase , the top tree in the peak may be a mór darach . How would you translate arcobriga?