lib

From Latin līber 'free' and the verb līberāre 'to set free.' It builds a family about freedom and release: liberty (freedom), liberal (favoring freedom; open-handed), liberate / liberation (set free), liberality (generosity). The most surprising member is deliver (de- + līberāre), which began as 'set completely free' and drifted toward 'hand over.' Do not confuse it with libr- 'book' (library) or lībra 'balance/scales' (equilibrium), which only look alike.