substantiate
to support with proof or evidence
Roots
- sta / stit: stand, place, or set
- sub-: under, below, or after
Other words with the sta / stit root
- circumstance: a condition surrounding an event
- constant: unchanging or steady
- destitute: lacking basic necessities; extremely poor
- obstacle: something that stands in the way
- obstinate: stubbornly refusing to change
- stance: a position or attitude
- stand: to be upright or stay in place
- station: a fixed place or position
Substantiate means give substance to a claim so it can stand.
The witness could not substantiate the accusation with dates or documents.
Stand and substance make substantiate easier. A claim stops floating when evidence gives it body, weight, and standing.