presume

The story

1. Latin · derived frompraesūmere“to take beforehand, anticipate”
2. Anglo-Norman · derived frompresumer
3. Middle English · inherited frompresumen
4. English todaypresume

From Middle English presumen, from Anglo-Norman presumer and its source, Latin praesūmere (“to take beforehand, anticipate”), from prae- + sūmere (“to take”).

First known use, by meaning

• from 14th c. To be so presumptuous as (to do something) without proper authority or permission [with to (+ infinitive)].
• from 14th c. To perform, do (something) without authority; to lay claim to without permission.
• from 14th c. To assume or suggest to be true (without proof); to take for granted, to suppose.
• from 15th c. To impose (on) for one's advantage; to be presumptuous; to take advantage (of); to take liberties (with) [with on or upon].