1 (wiktionary) 2 (vi.wikipedia) 3 (en.wikipedia) 4 (glosbe)

Core Words Familarize yourself with the 'core words'.
Compounds Expand your vocabulary by studying more complex words built by the 'core words'.
Etymology Explore the origin of the 'core words'.

{n}	restraint	(control or caution; reserve)	Zurückhaltung {f}, Beherrschung {f}, Kontrolle {f}
{n}	restraint	(something that restrains, ties, fastens or secures)	Beschränkung {f}, Zügelung {f}, Einschränkung {f}, Zwang {m}