Basque is one of the most illustrious examples of a *sine qua non* 'minor' language. The word for 'truth' in Europe's most archaic language is *egia*. No wonder, given that 'truth' is always *clear like the Sun* and the latter – the Sun – in Basque is called *eguzki*. Since 'day' in Basque is *egun*, an analogy offered by Turkish *güneş* 'Sun'/ *gün* 'day' leads us to conclude that *egun* must have originally denoted the Sun itself, as attested by the double meaning of Hungarian *nap* 'sun; day'. There is nothing called 'day' in human language.