hypothecate
hy·pot·he·cate
verb
1.
pledge without delivery or title of possession
2.
to believe especially on uncertain or tentative grounds
- “Scientists supposed that large dinosaurs lived in swamps”
Origin
From Latin hypothecatus, past participle of hypotheco, hypothecare. This was in turn derived from Ancient Greek ὑποθήκη (hupothḗkē, “pledge”), from the verb ὑποτίθημι (hupotíthēmi, “to pledge as surety”).
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WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.