din: [OE] Din is an ancient word, traceable back via Old English dyne and Germanic *dunjaz to an Indo-European base *dhun-, signifying ‘loud noise’. This is also represented in Sanskrit dhúnis ‘roaring’ and Lithuanian dundéti ‘sound’.
Old English dyne (n.), dynian (v.), from Proto-Germanic *duniz (cognates: Old Norse dynr, Danish don, Middle Low German don "noise"), from PIE root *dwen- "to make noise" (cognates: Sanskrit dhuni "roaring, a torrent").