Supposition
/ˌsʌp.əˈzɪʃ.ən/noun
An idea or belief accepted as true without proof.
Did you know?Supposition entered English through Latin legal and philosophical language, where the root *ponere* meant “to place,” the same ancient idea behind words tied to positioning, foundations, and even “posing” something as true.
Etymological Timeline
Proto-Indo-European
PIE
*dhē-
“to put, place, set”
Latin
Latin
ponere
“to place, set, put”
Late Latin
Latin
suppositio
“a placing under; assumption; substitution”
Old French
Old French
supposition
“an assumption; something supposed”
14th Century
English
supposicioun
“an assumption or hypothesis”
Modern English
English
supposition
“an idea or belief accepted without proof”