Meaning

noun a river in western Thailand; a major tributary of the Chao Phraya

noun a sharp high-pitched resonant sound (as of a sonar echo or a bullet striking metal)

verb hit with a pinging noise

originPartly onomatopoeic, and partly continuing Middle English pingen (“to push, shove, pierce, stab, prod, goad, urge, feel remorse, incite”), from Old English pyngan (“to prick”), in turn likely from pungere. Compare English pang.

Etymology from Wiktionary, CC BY-SA 3.0