- Confidence
- Established
- Formation
- Derivation
- First attested
- Sallust
- Ultimate origin
- Proto-Indo-European (*(s)pend-)
Pronunciation
Forms
pēnsō (present infinitive pēnsāre, perfect active pēnsāvī, supine pēnsātum); first conjugation[1]
Etymology
It is the frequentative of pendō “to hang; to weigh”, formed with -tō.[2][1][3] De Vaan traces ⟨pendō⟩ to Proto-Italic *pend-e/o- (“to hang, weigh”), from Proto-Indo-European *(s)pend- (“to spin”).[4]
Earliest recorded meaning
The OLD's earliest citation is from Sallust, of making up for something.[2] Köbler dates Sallust 86–34 BC.[5]
Semantic evolution
It meant to weigh one thing against another, as in Seneca; to set money off against a debt, as in Ulpian; to exchange; to counterbalance, make up for, as in Sallust; and to weigh in the mind, ponder, as in Livy.[2] Lewis & Short note that it is rare before Augustus and absent from Cicero.[6]
Through Vulgar Latin it became French peser “to weigh”, the source of English poise, and French penser “to think”, from which English pensive comes.[3][1]
Timeline
- 86–34 BC – Sallust uses it of making up for.[2][5]
- 59 BC–17 AD – Livy uses it of pondering.[2][5]
- late 14th century – English pensive and poise are recorded.[3]
Meanings
Verb
- To weigh against something.[2]
- To set off against a debt; to exchange.[2]
- To counterbalance, compensate.[2]
- To weigh in the mind, ponder.[2]
Word family
Related words
- pendō
- English poise
- English pensive
References
- ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
- ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
- ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
Derived terms
Cite this entry
“Penso.” Etymologically, 16 Oct. 2026, etymologically.com/la/penso. Accessed 16 Oct. 2026.
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