Etymology and origin of the Latin word ad-
- Confidence
- Established
- Formation
- Inherited
- Inherited from
- Proto-Italic *ad-
- Ultimate origin
- Proto-Indo-European *h₂ed
Forms
ad- [1] Assimilated forms are common before ⟨c⟩, ⟨f⟩, ⟨g⟩, ⟨l⟩, ⟨n⟩, ⟨p⟩, ⟨s⟩, ⟨t⟩ (acc-, aff-, agg-, all-, ann-, app-, ass-, att-); the ⟨d⟩ is often dropped before ⟨sc⟩, ⟨sp⟩, ⟨st⟩ and ⟨gn⟩ (asc-, asp-, ast-, agn-), and early Latin has ar- (arvorsum, arfuisse).[2][1]
Etymology
It is inherited from Proto-Italic *ad-, the preposition ad used as a prefix; the prefix is found in the other Italic languages too.[1][2] De Vaan traces the preposition to Proto-Indo-European *h₂ed (“to”).[3]
Cognate with Oscan ad-, Umbrian ař-, Old Irish ad-, Welsh add- and Old English æt.[3]
Meanings
Prefix
- to, towards, at: addūcō, adveniō, accurrō.[1][2]
- (with verbs) Intensifying the action of the simple verb.[1]
Word family
Related words
Usage notes
⟨adq-⟩ is often written ⟨acq-⟩, and manuscripts show ⟨amm-⟩ for ⟨adm-⟩.[2]
References
- ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
Derived terms
- accingo
- accipio
- acclamo
- acclivis
- accognosco
- accolo
- accommodo
- accubo
- accumbo
- accumulo
- accuro
- accurro
- acquiesco
- adaeque
- adaequo
- adamo
- adaperio
- adaugeo
- addecet
- addico
- addisco
- addo
- addubito
- adedo
- adeo
- adequito
- adhortor
- adigo
- adinvenio
- adiudico
- adiungo
- adiuro
- admetior
- admigro
- admisceo
- admitto
- admoneo
- admordeo
- admoveo
- adnato
- adnecto
- adnitor
- adno
- adnoto
- adnumero
- adoleo
- adoperio
- adorno
- adoro
- adsum
- aduncus
- aduro
- advolo
- affingo
- aggero
- allaudo
- alloco
- alludo
- appareo
- apparo
- appello
- apporto
- appretio
- appropero
- arrepo
- ascendo
- aspergo
- aspiro
- assero
- assilio
- assono
- asto
- astruo
- attempto
- attendo
- attenuo
- attero
- attineo
- attondeo
- attonitus
- attono
Descendants
Related etymologies
Cite this entry
“Ad-.” Etymologically, 23 Oct. 2026, etymologically.com/la/ad-. Accessed 23 Oct. 2026.
Last edited on . ·