quir-, quisit-, quis-, que-, quer-, quest-, -quirement, -quirable, -quisition, -quisitive

(Latin: to ask, to seek)

requested
requesting
require
1. To be in need of something or someone for a particular purpose.
2. To have something as a necessary precondition.
3. To insist that someone do something.
required
1. Necessary or appropriate.
2. Insisted upon or imposed as a condition.
requirement
1. Something that is needed for a particular purpose.
2. Anything that is obligatory or demanded.
3. An act or process of requiring something.
requisite
Necessary or indispensable for something; or, something that is necessary or indispensable.
requisition
1. A demand for something that is required.
2. A written or printed request for something that is needed.
3. The act or process of making a formal demand for something.
4. To demand and take something that is needed, especially for official or military use.
Si monumentum requiris, circumspice.
If you seek a monument, look around you.

An inscription on Sir Christopher Wren's tomb in St. Paul's Cathedral, London, England. Wren was the architect of the cathedral.

unconquerable
unconquerably
unquestionable
unquestionably