jǐng
=
ji
+
(e)ng3:
a well / CL:口[kou3] / neat / orderly
Mnemonic
Joan of Arc (ji) is digging a well (井) inside the engine ((e)ng3). At first she was doing it by hand, but then she hooked up a capacitor (二) to a banana (丿) and a dinosaur bone (丨), which dig for her using the electrical energy.
to help / to assist / mutual assistance / to rush into or up / to raise or hold up / high / tall / old variant of 欀 / chariot horse (old) / change (old)