An interesting Dutch word I learnt yesterday is liflafjes [ˈlɪf.lɑf.jəs], which
means scraps, trimmings, leftovers or knickknacks [source]. The singular version, liflafje, apparently means “a small meal that fails to fill” or “a trifle” and is a diminutive of liflaf, which means insipid food, insipid text(s) or bland writing, and used to mean insipid or tasteless [source].

According to webwoordenboek.nl, liflaf means “een smakelijk maar weinig voedzaam gerechtje” (a tasty but not very nutritious dish), or “een aardig maar overbodig iets” (a nice but unnecessary thing).

These words come from liflaffen, a dated word that’s used mainly in Belgium to mean to grovel, fawn, flatter, caress or fondle. A related word is liflafferij [ˌlɪf.lɑ.fəˈrɛi̯], which means flattery or sweet-talking [source].

A knick(-)knack is a small ornament of minor value, a trinket or bauble. It is a reduplication of knack (aptness, petty contrivance, trick), which possibly comes from the Middle English krak (a sharp blow). An equivalent in Dutch is snuisterij [source].

A mishmash is a collection containing a variety of miscellaneous things. It is a reduplication of mash. Some synonyms include hodgepodge, melange, mingle-mangle, oddments and odds and ends. Do you have any others? An equivalent in Dutch is mikmak [source].