Etymology

solemn

sol·emn
S1O1L1E1M3N1

Today it means: Of or pertaining to religious ceremonies and rites; (generally) religious in nature; sacred. Full definition →

Middle English solempne ← Old French solempne ← Late Latin sōlempnis
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The story

  1. Proto-Indo-European · derived from*h₁ed-“to eat”
  2. Proto-Indo-European · derived from*solh₂-“whole”
  3. Latin · derived fromsōlemnis
  4. Late Latin · derived fromsōlempnis
  5. Old French · derived fromsolempne
  6. Middle English · inherited fromsolempne
  7. English todaysolemn

From Middle English solempne, solemne (“performed with religious ceremony or reverence; devoted to religious observances, sacred; ceremonious, formal; of a vow: made under a religious sanction, binding; religious celebration, celebration of a feast day; famous, well-known; important; grand, imposing; awe-inspiring, impressive; grave, serious; dignified; enunciated or held formally”) [and other forms], from Old French solempne, solemne (“serious, solemn”) [and other forms], or from its etymon Late Latin sōlempnis, sōlennis, from Latin sōlemnis, from sollemnis (“appointed, established, fixed; common, customary, ordinary, ritual, traditional, usual; ceremonial, religious, solemn; festive; annual, yearly”) [and other forms]. The further etymology is uncertain; sollus (“entire, whole”) (ultimately from Proto-Indo-European *solh₂- (“whole”)) + epulum (“banquet, feast”) (in the sense of a ritual; perhaps ultimately from Proto-Indo-European *h₁ed- (“to eat”)) has been suggested.

Words from the same roots

Latinsōlemnis all →

Proto-Indo-European*solh₂- all →

safeholocaust

Proto-Indo-European*h₁ed- all →

eatfretescaroleovestesculentettin

Etymology from Wiktionary, CC BY-SA 4.0.