Segedunum & Segelocum

AttestedSegeduno in ND, Serduno in RC
Segeloci in AI5, Ageloco in AI8, plus S on one milestone

WhereSegedunum is generally accepted as the fort at Wallsend on Tyne at NZ30026602.  However, there is also a strong case for taking the name away from there and applying it to the fort and supply base at South Shields, which would liberate the name Arbeia to move elsewhere.
Segelocum is securely located at Littleborough beside the Trent at SK82218292

Name origin:  Majority thinking was summed up by R&S thus: “a base in Indo-European *segh-, with many derivatives including British *sego- perhaps ‘power, force’ .... too widespread to be reckoned as Celtic and Germanic only”.  Delamarre (2003) showed no hesitation in defining Gaulish sego- as ‘victory, force’.  That interpretation (which is strongly influenced by German Sieg ‘victory’) is a poor fit to these two British locations, which were both ferry-crossing points of major rivers in relatively peaceful territory.  It is tempting to think of alternatives based on vegetation (sedge, or Latin seges ‘cornfield’) or on various words derived from PIE *sek- ‘to cut’.  Perhaps the best explanation for these two names may be PIE *seg- ‘to attach, to tack on’.

NotesSegeswalde (AD 1118), modern Six Hills in Leicestershire, just 4 km from Roman-era Vernemetum, prompted Trubshaw to question how an element seg- came to be associated with ancient tribal moot sites.  Modern Sixhills in Lincolnshire occupies a similar relation to Lissingleys another possible moot site.  Σεγοδουνον of Ptolemy 2,7,21, in Roman Aquitania, modern Rodez, was a tribal oppidum not obviously similar to British Seg- places.

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Last Edited: 4 March 2017