aunque
/ˈaunke/ · A1 · conj
though, although, even though, albeit
aunque = aun (even) + que (that): even that... → even though
Two small words fused: aun means even or still, que means that. Even that it rains, I go = although it rains, I go. With the subjunctive it shifts to even if: aunque llueva = even if it rains.