box: English has two distinct words box. The ‘receptacle’ [OE] probably comes from late Latin buxis, a variant of Latin pyxis (whence English pyx ‘container for Communion bread’ [14]). This was borrowed from Greek puxís, which originally meant not simply ‘box’, but specifically ‘box made of wood’; for it was a derivative of Greek púxos, which via Latin buxus has given English box the tree [OE]. Box ‘fight with the fists’ first appeared in English as a noun, meaning ‘blow’ [14], now preserved mainly in ‘a box round the ears’.
Its ancestry is uncertain: it may be related to Middle Dutch bōke and Danish bask ‘blow’, or it could simply be an obscure metaphorical extension of box ‘receptacle’. => pyx[box etymology, box origin, 英语词源]