合計した
解説 Definition
summed は sum（合計する）の過去形・過去分詞です。数値や金額などを足し合わせたことを表します。
The past tense and past participle of “sum,” meaning added two or more numbers, prices, scores, or amounts together to obtain a total.
覚え方のコツ Memory Tip
原形 sum「合計する」は短母音＋子音字で終わるため、-ed の前で m を重ねて summed と書きます。発音は /sʌmd/ で、-ed は /d/ です。sum the prices、sum the scores、costs were summed のように、複数の数値を足して一つの総計にする場面で覚えましょう。
Link summed to the base verb sum, meaning to add amounts together. Because sum ends in a short vowel followed by one consonant, the final m is doubled before -ed: sum becomes summed. The ending is pronounced /d/, giving /sʌmd/. Remember the word through practical combinations such as summed the prices, summed the scores, and costs were summed. In this entry, it refers specifically to calculating a total, not to summarizing an idea, as in summed up.
例文
She summed the prices before paying at the counter.
彼女はレジで支払う前に値段を合計しました。
The teacher summed the scores for each group.
先生は各グループの点数を合計しました。
All the monthly costs were summed in the final report.
月ごとの費用はすべて最終報告書で合計されました。
summed の類義語・関連語
summed の語源・成り立ち Etymology
ラテン語 summa（最高点、合計）から古フランス語 somme を経て英語 sum に。語根は superl. of superus（上の）で「最も上にあるもの＝総計」の意。関連語：summary（要約）、summit（頂上）。全体を一つにまとめ上げるイメージ。
Summed is formed from sum plus -ed, with the final m doubled under the usual spelling rule. Sum came into English through Old French somme from Latin summa, referring to the highest point, principal amount, or total. The underlying idea of bringing items together into one final amount produced the verb meaning “to add.” Related historical formations include summary and summit, though their modern meanings differ.
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