es-

From s-.

• IPA^(key): /ɛs/

es-

1. (pharmacology) Used to form names of drugs with a chiral center in the S configuration.

• -se, SE, Se., se, se.

From Latin ex.

es-

1. indicates movement away or separation

   ‎es- + ‎fueya (“leaf”) → ‎esfoyar (“to remove leaves from”)

   ‎es- + ‎guedeyu (“tuft”) → ‎esguedeyar (“to muss”)

• des-

From Latin ex. Doublet of ex-.

es-

1. indicates movement away or separation

   ‎es- + ‎fulla (“leaf”) → ‎esfullar (“to remove leaves from”)

• “es-” in Diccionari de la llengua catalana, segona edició, Institut d’Estudis Catalans.
• “es-”, in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana, 2024
• “es-” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.

From Latin ex. Doublet of ex-.

es-

1. indicates movement away or separation

   ‎es- + ‎corda (“tendon”) → ‎escordar (“to sprain”)

   ‎es- + ‎maga (“guts”) → ‎esmagar (“to squeeze”)

   ‎es- + ‎milfa (“tassel”) → ‎esmilfar (“to fray”)

From

.

From Old Occitan [Term?], from Latin ex-.

es-

1. indicates movement away or separation

From Latin ex-.

es-

1. indicates movement away or separation
2. variant of a-

• French: é-

Inherited from Latin ex- (“out of”).

es-

1. indicates separation

   ‎es- + ‎coger → ‎escoger

2. indicates removal or elimination

   ‎es- + ‎pulga → ‎espulgar

3. indicates intensification

   ‎es- + ‎forzar → ‎esforzar

• “es-”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.7, Royal Spanish Academy [Spanish: Real Academia Española], 2023 November 28

• ech-

See ech-.

• IPA^(key): /ɛs/

es-

1. out, ex-

   Synonyms: all-, ech-

   ‎es- + ‎plygu (“fold”) → ‎esblygu (“evolve”)

This element also appears in words borrowed from Latin, such as esbonio (“explain”), estron (“foreign”), and estyn (“extend”), where it corresponds to Latin ex-.

• Welsh terms prefixed with es-

• R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “es-”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies
• Morris Jones, John (1913) A Welsh Grammar, Historical and Comparative, Oxford: Clarendon Press, § 156 i (15)