The Spanish verb 'ligar' comes from the Latin word 'ligare', meaning 'to bind' or 'to tie'. While it maintains this literal meaning of binding or tying things together in Spanish, it has also developed a figurative meaning in modern Spanish: 'to flirt' or 'to pick up' someone in a romantic context. This semantic evolution makes sense when you think about forming connections or 'ties' with another person in a social or romantic way.

Several common Spanish words share this Latin root, including 'liga' (league, garter), 'religión' (religion, from the idea of being bound to divine faith), and 'obligar' (to obligate, literally meaning to bind someone to a duty). These words all preserve the core concept of binding or connecting in different contexts.

English speakers might recognize this Latin root in words like 'ligament' (the tissue that binds bones together), 'league' (a binding together of people or organizations), and 'liable' (bound by law). The word 'ally' also comes from this root, literally meaning 'bound together'. Even 'religion' shares this ancient root, originally referring to being bound to divine faith.