Tact
Etymology
From Latin "tactus" (the sense of touch, a touching), from "tangere" (to touch) — the root behind "tactile," "contact," and "intact." Its meaning migrated from literal touch to a figurative fine touch: a delicate perception of what a moment can bear, and the skill to act on it.
noun · /TAKT/
A sensitive skill in handling people or difficult situations without causing offense.
What it names
The deft touch that lets you say or do the necessary thing without needless hurt — social grace under pressure.
Example
It took real tact to tell him the plan was failing without making him feel blamed for it.
Related idea
Where bluntness says the true thing plainly and lets it land as it will, tact is the touch that delivers the same truth without needless wound.