allí
/aˈʝi/ · A1 · adv
there (away from the speaker and the listener)
allí = a + Latin illic (over there): the far-off there, away from us both
From Latin ad + illic, meaning at that place yonder. Spanish sorts place by distance: aquí is here by me, ahí is there by you, allí is there far from both of us. The ll links it to aquel and aquella, the far-away that.