Etymograph

English

relaxation

Relaxation comes from Latin relaxatio ‘relaxation (all senses)’, from relaxō ‘to stretch out or widen again’, and ultimately from Proto-Indo-European *(s)leg-.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*(s)leg-1‘to tire out, slacken’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*(s)leg-s-ós1reconstructed
  3. Latinc. 75 BCE–200 CElaxus1‘loose, slack, free’
  4. Latinc. 75 BCE–200 CElaxō1‘to extend’
  5. Latinc. 75 BCE–200 CErelaxō2‘to stretch out or widen again’
  6. Latinc. 75 BCE–200 CErelaxatio3as relaxatio‘relaxation (all senses)’
  7. Englishearliest quotation 1989relaxation3

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Latin relaxo
  2. 2 Wiktionary, Latin relaxatio
  3. 3 Wiktionary, English relaxation
  4. Earliest quotation in Wiktionary’s entry: 1989, Michael De Mayo, A New Word In AIDS Prevention: Relapse: “It may seem as though the safer sex message…”.

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*(s)leg-Wiktionary, Latin relaxo‘to tire out, slacken’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*(s)leg-s-ósWiktionary, Latin relaxoreconstructed
  3. Latinc. 75 BCE–200 CElaxusWiktionary, Latin relaxo‘loose, slack, free’
  4. Latinc. 75 BCE–200 CElaxōWiktionary, Latin relaxo‘to extend’
  5. Latinc. 75 BCE–200 CErelaxōWiktionary, Latin relaxatio‘to stretch out or widen again’
  6. Latinc. 75 BCE–200 CErelaxatioWiktionary, English relaxationas relaxatio‘relaxation (all senses)’
  7. Englishearliest quotation 1989relaxationWiktionary, English relaxation. Earliest quotation in Wiktionary’s entry: 1989, Michael De Mayo, A New Word In AIDS Prevention: Relapse: “It may seem as though the safer sex message…”

Formed from relax + -ation

Proto-Indo-European *(s)leg-s-ós ‘weak, faint’

…

Latin laxāre ‘loosen’

Latin relaxāre ‘relax, loosen, open’

Old French relaxer

Middle English relaxen ‘loosen, make (something) less compact or dense’

English relax

Linked words

through Proto-Indo-European *(s)leg- ‘to tire out, slacken’

languish, languid, slake

through Latin laxus ‘loose, slack, free’

leash, lax, laxity, 5 more

through Latin laxō ‘to extend’

release, lease, 4 more

through Latin relaxō ‘to stretch out or widen again’

relish

Today it means

noun The act of relaxing or the state of being relaxed; the opposite of stress or tension; the aim of recreation and leisure activities.

Sources

Sources: Wiktionary, “relaxation”; the older steps come from the Wiktionary entries for Latin relaxo, Latin relaxatio. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.

Etymograph / Proto-Indo-European *(s)leg- / relaxation

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