A confusion of rhotics

Most personal names and theonyms found in Latin inscriptions from the old region of Aquitaine correspond to an early form of Basque commonly referred as Proto-Basque by Vascologists. However, some of these names have been wrongly interpreted due to an imperfect reading of rhotics: while the flap /r/ <r> is usually written as RH, the trill /ŕ/ <rr> can be either R or RR. Thus reading R as /r/ instead of the actual /ŕ/ is a mistake many Vascologists have made.

For example, the Aquitanian theonym HERAVSCORRITSEHE, usually interpreted as containing a first member herauś corresponding to modern Basque herauts 'boar', but this is inexact. Firstly, this word is actually one of the variants of a word *enauś(i), *inauś(i) whose meaning is 'heat of sow' or 'sow/female boar in heat' and whose modern forms¹ display two alternative results from a former *n². The correct reading is heŕaus, which corresponds to modern Basque errauts 'ash' (a compound of erre 'to burn' and hauts 'dust')³.

Another example is the anthroponym LAVRCO, whose first element⁴ is commonly interpreted as the numeral lau(r) '4' (with a flap /r/), when it's actually lauŕ (with a trill /ŕ/). This corresponds to modern Basque labur 'short'⁵, so in this case the Aquitanian form corresponds to Iberian and not to Proto-Basque⁶. 
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¹ herause, eresu, (h)erüsi, heusi, iñaus, iraus, i(h)ausi, irausi, irusi.

² According to our own interpretation, the regular shift -n- > -0- in Basque (as well as in Gascon and Portuguese) is consequence of an adstrate influence, while the comparatively rare -n- > -r- is part of its own Iberian pedigree.

³ This was first proposed by Hugo  Schuchardt.
⁴ Also found in Iberian anthroponyms. The second element is the diminutive suffix -ko.
⁵ The form laur is only found in the Baztanese dialect.
⁶ Iberian has *bu > u while Basque has *bo > o.