AttestedOnna at position 40 in the Ravenna Cosmography

Where:  Mottisfont, Hampshire where a historic spring at SU3265326879 still flows in the grounds of a medieval abbey.  This lies 4 km south of where a well-characterized Roman road crossed the river Test, at Horsebridge, SU339305.  Located by the Cosmography listing Onna between Noviomagno (probably Old Sarum) and Venta velgarom (near Winchester).

Name originEndlicher's Glossary explained “Gaulish” onno as Latin flumen ‘river’, which has prompted discussion of a possible origin from PIE *(s)nau- ‘to flow’ and links with Latin unda ‘wave’ and with ancient river names ending in -na.

Notes::  Possibly there was another noteworthy spring near Horsebridge, or there was a roadside rest stop there that took its name from Mottisfont, or the Cosmography's place grew important some distance off the Roman road.  Note also Onno near Hadrian's Wall.

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Last edited 27 September 2023;   To main Menu.