acorn
/ˈeɪkɔːrn/
noun
Origin
Proto-Germanic
*akraną — fruit, mast
Overview
Meaning Now
- The nut of the oak tree, typically woody and oblong, sitting in a cup-like base (cupule).
Literal older meaning
Fruit of the field/uncultivated land
Language path
Proto-Germanic → Old English → English
Earliest form
æcern
Earliest period
Old English period
Journey
The word originally referred to any 'mast' or fruit of the forest (such as beech nuts or acorns). Its connection to the word 'oak' (Old English 'āc') is a historical accident resulting from Middle English reanalysis, as the original Proto-Germanic root meant 'fruit of the field'.
Evolution
- Proto-Germanic
*akraną
“fruit of the wild/field”
- Old English
æcern
“nut, acorn”
Original sense was generic 'fruit of the forest'.
- Middle English
akern
“acorn”
Influenced by folk etymology linking it to 'oak'.
Connections
Word parts
ac-
root
oak (related to Old English 'ac')
-orn
suffix
diminutive or possessive suffix
Related across languages
Old High German
ackarn
fruit, harvest
Old Norse
akarn
acorn
Related words
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External references use DefinedTerm semantics.