insert, insertion, inlay, inset, removable part (in general: something inserted or fitted into something else) · part of clothing inserted as decoration; cf. empiècement · refill (for a pen) or a (usually removable) pencil lead (e.g. for a mechanical pencil)
çekim: çoğul betétek
köken: be- (“in, into”) + tét (the action of placing, putting), from the verb tesz (“to put”). Compare German Einlage, Einsatz.