Fromextra +‎extra extra large.

extraextraextralarge (countable anduncountable,pluralextra extra extra larges)

(especially with respect to clothing)

1. (uncountable)One of severalsizes to which an item may be manufactured.

   Synonyms:XXXL,3XL

2. (countable) An item labelled or denoted as being that size.
3. (countable) One who fits an item of that size.

extraextraextralarge (notcomparable)

1. (especially clothing) That is extra extra extra large(the manufactured size).
2. Used other than figuratively or idiomatically:seeextra,‎large.

• English compound terms
• English lemmas
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• English uncountable nouns
• English countable nouns
• English multiword terms
• en:Clothing
• English adjectives
• English uncomparable adjectives
• en:Size

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