Etymograph

English

armamentary

Armamentary comes from Latin armamentarium ‘arsenal’, from armamentum ‘equipment, implement, utensil’, and ultimately from Proto-Indo-European *h₂er- ‘to fit, to fix, to put together, to slot’.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₂er-1‘to fit, to fix, to put together, to slot’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*h₂(e)rmos1reconstructed
  3. Proto-Italicc. 1500–700 BCE*armos1reconstructed
  4. Latinc. 75 BCE–200 CEarma1‘arms, weapons’
  5. Latinc. 75 BCE–200 CEarmō2‘to furnish with weapons, arm, equip’
  6. Latinc. 75 BCE–200 CEarmamentum3‘equipment, implement, utensil’
  7. Latinc. 75 BCE–200 CEarmamentarium3‘arsenal’
  8. Englishtodayarmamentary3

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, Latin armo
  2. 2 Wiktionary, Latin armamentum
  3. 3 Wiktionary, English armamentary

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*h₂er-Wiktionary, Latin armo‘to fit, to fix, to put together, to slot’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*h₂(e)rmosWiktionary, Latin armoreconstructed
  3. Proto-Italicc. 1500–700 BCE*armosWiktionary, Latin armoreconstructed
  4. Latinc. 75 BCE–200 CEarmaWiktionary, Latin armo‘arms, weapons’
  5. Latinc. 75 BCE–200 CEarmōWiktionary, Latin armamentum‘to furnish with weapons, arm, equip’
  6. Latinc. 75 BCE–200 CEarmamentumWiktionary, English armamentary‘equipment, implement, utensil’
  7. Latinc. 75 BCE–200 CEarmamentariumWiktionary, English armamentary‘arsenal’
  8. EnglishtodayarmamentaryWiktionary, English armamentary

Linked words

through Proto-Indo-European *h₂er- ‘to fit, to fix, to put together, to slot’

order, reason, ready, rate, art, article, artist, ratio, arm, ordinary, alarm, coordination, coordinate, harmony, arthritis, subordinate, ordination, articulate, anarchy, ornate, inertia, arithmetic, aristocratic, artisan, inert, harmonic, adorn, articulation, ordinate, harmonious, ordinator, ornament, ordinal, ordain, rta, artifice, ordo, harmonize, archon, rime, 75 more

through Latin arma ‘arms, weapons’

armistice, 9 more

through Latin armō ‘to furnish with weapons, arm, equip’

army, armor, armada, armadillo, armature, 3 more

Today it means

noun An armory or arsenal (place to store weapons)

Sources

Sources: Wiktionary, “armamentary”; the older steps come from the Wiktionary entries for Latin armo, Latin armamentum. 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 *h₂er- / armamentary

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