liefern

to supply, provide .mw-parser-output .object-usage-tag{font-style:italic}.mw-parser-output .deprecated{color:var(--wikt-palette-grey-lime-8,olivedrab)}[with accusative ‘goods etc.’ and an (+ accusative) ‘to someone/somewhere’]

to deliver (goods, an order, etc.)

to yield (to produce an outcome)

to research, to read up on (information)