Virga
Etymology
From Latin "virga" ("rod, twig, streak"), for the wispy trailing streaks that hang beneath a cloud. Meteorologists adopted it for precipitation that sublimates or evaporates in dry air on the way down.
noun · /VUR-guh/
Streaks of rain or snow that fall from a cloud but evaporate before reaching the ground.
What it names
A precise, evocative word for promised rain that never lands — literally in the sky, and figuratively for effort or intention that dissipates before it makes contact.
Example
The forecast promised a storm, but it came as virga — dark ribbons under the clouds that never wet the fields.
Related idea
The counterpart to actual precipitation, which reaches the ground; virga is the ghost of rain, visible proof that something fell and yet nothing arrived.
See also