▁the ▁word ▁is ▁ultimately ▁unknown , ▁except ▁for ▁the ▁ending ▁- in ▁which ▁frequently ▁occurs ▁in ▁liqu ids ▁( cf ▁o z pin ▁" vin eg ar ", ▁pit ip in ▁or ▁tx uz pin ▁" water ed ▁w ines "), ▁the ▁word ▁is ▁obsc ure . ▁ ▁Among st ▁the ▁more ▁f anc iful ▁attempts ▁at ▁deriv ation ▁is ▁a ▁suggested ▁origin ▁from ▁et x ek o ▁ain ▁( just ▁enough ▁for ▁the ▁home ). ▁O thers ▁opt ▁for ▁a ▁French ▁origin ▁as ▁it ▁initially ▁appeared ▁as ▁a ▁term ▁to ▁identify ▁French ▁w ines ▁in ▁villages ▁of ▁eastern ▁G ip uz ko a . ▁There ▁are ▁also ▁authors ▁who ▁suggest ▁a ▁Spanish ▁origin ▁of ▁the ▁term . ▁ ▁History ▁ ▁Until ▁the ▁ 1 9 8 0 s , ▁tx ak oli ▁was ▁a ▁home - made ▁wine , ▁dr unk ▁in ▁the ▁Bas que ▁Country , ▁Cant ab ria ▁and ▁Valle ▁de ▁M ena , ▁and ▁almost ▁in ▁danger ▁of ▁dying ▁out ▁towards ▁the ▁middle ▁of ▁the ▁ 1 9 th ▁century . ▁However , ▁since ▁some ▁vari eties ▁of ▁tx ak oli ▁in ▁the ▁Bas que ▁Country ▁managed ▁to ▁achieve ▁den om inación ▁de ▁origen ▁cert ification ▁from ▁ 1 9 8 9 ▁on wards , ▁its ▁quality , ▁spread ▁and ▁appeal ▁have ▁increased . ▁ ▁Vari eties ▁ ▁T x ak oli ▁is ▁tradition ally ▁fer ment ed ▁in ▁f oud res ▁( very ▁old , ▁large ▁o ak ▁bar rel s ) ▁but ▁most ▁tx ak oli ▁produced