Is it ensure, insure, or assure?
1819, "to sound as metal when struck," possibly abstracted from ding-dong, of imitative origin. The meaning "to deal heavy blows" is c.1300, probably from Old Norse dengja "to hammer," perhaps also imitative. Meaning "dent" is 1960s. Related: Dinged; dinging.
Old English deorling "darling, favorite minion," double diminutive of deor "dear" (see dear (adj.)). The vowel shift from -e- to -a- (16c.) is usual for -er- followed by a consonant. "It is better to be An olde mans derlyng, than a yong mans werlyng" (1562).
Homeless: in the ding camp at San Josenoun
Ps. 22:20; 35:17) means an "only one."
type of ancient Chinese cooking or holding vessel, usually with two handles on the rim, that is supported by three or four columnar legs.