Simple past tense and past participle of upsize.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "upsized" in a sentence
"The doll wears upsized versions of clothing from the Missoni for Target line."
"The deal, which was upsized from an initial $500 million, also was the first 100-year government bond to come out of Latin America, according to research firm Dealogic."
"Celgene Corp. — $1.25 billion multitranche bond issue, upsized from an initially planned $1 billion of notes in two parts, was priced through lead managers Citi, J.P. Morgan and Morgan Stanley, according to a person familiar with the deal."