Unnumbered source etymology
Original entry ↗To calculate the differences between the characters in an enciphered text and the characters a fixed number of positions previous. · To compare two versions of the same file in order to determine where they differ (where a programmer has made edits).
The fourth letter of the modern Greek alphabet Δ, δ. · A landform at the mouth of a river where it empties into a body of water. · Alternative letter-case form of Delta from the NATO/ICAO Phonetic Alphabet. · The symbol Δ; A change in a quantity, likely from "d" for "difference".
From Ancient Greek δέλτα (délta), borrowed from a Phoenician word for "door", ultimately from Proto-Semitic *dalt-. Doublet of dalet. * (river): from the triangular shape of the majuscule Greek letter delta Δ * (USSF): from the delta wing, symbol of the USSF, a triangular wing, shaped like the majuscule Greek letter delta Δ
Relationships mentioned by the source
These are extracted mentions, not a timeline or a verified sequence of immediate parents.
This page abbreviates 11 auxiliary source items. The etymology narrative is not shortened. Omission counts are available in the audit fields below; consult the original for complete auxiliary material.
Inspect preserved source fields
Raw extraction fields are retained for auditing. Their order does not establish ancestry.
{
"templates": [
{
"name": "der",
"args": {
"1": "en",
"2": "grc",
"3": "δέλτα"
},
"expansion": "Ancient Greek δέλτα (délta)"
},
{
"name": "der",
"args": {
"1": "en",
"2": "sem-pro",
"3": "*dalt-"
},
"expansion": "Proto-Semitic *dalt-"
},
{
"name": "doublet",
"args": {
"1": "en",
"2": "dalet"
},
"expansion": "Doublet of dalet"
},
{
"name": "sense",
"args": {
"1": "river"
},
"expansion": "(river):"
},
{
"name": "sense",
"args": {
"1": "USSF"
},
"expansion": "(USSF):"
}
],
"links": [
[
"δέλτα",
"δέλτα#Ancient_Greek"
],
[
"*dalt-",
"Reconstruction:Proto-Semitic/dalt-"
],
[
"dalet",
"dalet#English"
],
[
"delta wing",
"delta wing"
]
],
"references": [],
"descendants": [],
"lexical": [
{
"pos": "verb",
"glosses": [
"To calculate the differences between the characters in an enciphered text and the characters a fixed number of positions previous.",
"To compare two versions of the same file in order to determine where they differ (where a programmer has made edits)."
],
"tags": [],
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"sourceRecordOrdinal": 122512
},
{
"pos": "noun",
"glosses": [
"The fourth letter of the modern Greek alphabet Δ, δ.",
"A landform at the mouth of a river where it empties into a body of water.",
"Alternative letter-case form of Delta from the NATO/ICAO Phonetic Alphabet.",
"The symbol Δ; A change in a quantity, likely from \"d\" for \"difference\"."
],
"tags": [
"alt-of"
],
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"sourceRecordOrdinal": 122511
}
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"lexicalRecords": 0,
"lexicalSenses": 11,
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}
}