roborant

adj.
Restoring vigor or strength.

n.
A roborant drug; a restorative or tonic.

[Latin rōborāns, rōborant-, present participle of rōborāre, to strengthen, from rōbur, rōbor-, oak, strength.]

(ROB-uhr-uhnt)

adjective
Strengthening.

noun
A tonic.

Etymology
From Latin roborare (to strengthen), from robor- (oak, hardness). Ultimately from the Indo-European root reudh- (red) that also gave us red, rouge, ruby, ruddy, rubella, robust, corroborate, and rambunctious.]

Usage
"'A roborant against the night air, dear fellow,' Renzi whispered, proffering hot negus*." — Julian Stockwin; The Admiral's Daughter; McBooks Press; 2007. * negus: a drink made of wine, hot water, sugar, nutmeg, and lemon, named after Colonel Francis Negus who invented it.

---

adjective

Producing or stimulating physical, mental, or emotional vigor: bracing, energizing, exhilarant, exhilarating, innerving, intoxicating, invigorating, refreshing, reinvigorating, renewing, restorative, stimulating, tonic. See help/harm/harmless.

noun

A medicine that restores or increases vigor: restorative, tonic. Informal bracer, pick-me-up. See help/harm/harmless.

healthful(?); restoring vigor or strength