Pre‐sume″, v. i. 1. To suppose or assume something to be, or to be true, on grounds deemed valid, though not amounting to proof; to believe by anticipation; to infer; as, we may presume too far.
2. To venture, go, or act, by an assumption of leave or authority not granted; to go beyond what is warranted by the circumstances of the case; to venture beyond license; to take liberties; — often with on or upon before the ground of confidence.
Do not presume too much upon my love. Shak.
This man presumes upon his parts. Locke.