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/ɛð/ · noun
A letter (capital Ð, small ð) introduced into Old English to represent its dental fricative, then not distinguished from the letter thorn, no longer used in English but still in modern use in Icelandic, the IPA and other phonetic alphabets to represent the voiced dental fricative "th" sound as in the English word then. The letter is also used in Faroese, but is generally silent in that language..
In Old English manuscripts thorn and eth did not have different phonetic values but were used positionally[.]
Use eth. when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Eth. means A letter (capital Ð, small ð) introduced into Old English to represent its dental fricative, then not distinguished from the letter thorn, no longer used in English but still in modern use in Icelandic, the IPA and other phonetic alphabets to represent the voiced dental fricative "th" sound as in the English word then. The letter is also used in Faroese, but is generally silent in that language..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
In Old English manuscripts thorn and eth did not have different phonetic values but were used positionally[.]
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