vault (n.1)

"arched roof or ceiling," c. 1300, vaute, from Old French voute "arch, vaulting, vaulted roof or chamber," from Vulgar Latin *volta, contraction of *volvita, noun use of fem. of *volvitus, alteration of Latin volutus "bowed, arched," past participle of volvere "to turn, turn around, roll," from PIE root *wel- (3) "to turn, revolve." The -l- appeared in English c. 1400, an etymological insertion in imitation of earlier forms (compare fault (n.), assault (n.)).

vault (v.1)

"jump or leap over," especially by aid of the hands or a pole, 1530s, transitive (implied in vaulting); 1560s, intransitive, from French volter "to gambol, leap," from Italian voltare "to turn," from Vulgar Latin *volvitare "to turn, leap," frequentative of Latin volvere "to turn, turn around, roll" (from PIE root *wel- (3) "to turn, revolve"). Related: Vaulted; vaulting.

vault (n.2)

"a leap," especially using the hands or a pole, 1570s, from vault (v.1).

vault (v.2)

"to form with a vault or arched roof," late 14c., from Old French vaulter, volter, from voute "arch, vaulted roof" (see vault (n.1)). Related: Vaulted; vaulting.

updated on December 07, 2020

Definitions of vault from WordNet
vault (n.)
a burial chamber (usually underground);
Synonyms: burial vault
vault (n.)
a strongroom or compartment (often made of steel) for safekeeping of valuables;
Synonyms: bank vault
vault (n.)
an arched brick or stone ceiling or roof;
vault (n.)
the act of jumping over an obstacle;
Synonyms: hurdle
vault (v.)
jump across or leap over (an obstacle);
Synonyms: overleap
vault (v.)
bound vigorously;
Etymologies are not definitions. From, not affiliated with etymonline.