First opened Saturday, June 13, 2009
二日
ふつか
Pitch accent: We don't have the data for this section. No accent list gives this spelling and reading, or the two we check against disagree.
two days; second day of the month
“Two days” has a ふつ that is not the usual reading of 二.
Taken apart
Select a part to see every word so far that is taken apart with it.
In a sentence
二日後に彼は帰ってきた。
He came back two days after.
このミルクは二日はもつ。
The milk will keep for two days.
Sentences are from Tatoeba (CC BY 2.0 FR), picked by fixed rules from a dated export and shown unchanged. Nobody has reviewed them one by one.
What Wiktionary says
Quoted line by line from Wiktionary's Etymology section for this reading, taken from one dated dump so it can't change underneath us. Nothing below is paraphrased.
Not settled
Wiktionary itself hedges on part of this word's origin — those lines are marked below.
- “/putuka/ → /fut͡suka/”
- “From Old Japanese. First attested in the Nihon Shoki of 720.”
- Hedged“Analyzable as a compound of 二 (futsu, “two”, irregular reading, apparently a shift from expected reading futa) + 日 (ka, “day”, uncommon variant only occurring in certain compounds of ancient derivation).”
Source: Wiktionary: 二日 (dump of 2026-09-02), available under CC BY-SA 4.0. Reading, meaning and part of speech from JMdict, and kanji readings from KANJIDIC2 (EDRDG).
Other readings of 二日 on the same Wiktionary page
These describe other words written the same way, not ふつか. They are quoted for context: the parts, layer and processes of this word are not taken from them.
ふたひ
- “Compound of 二 (futa, “two”, used in counting) + 日 (hi, “day”). Generally only found in instances of counting, as in ひとひふたひ (hitohi futahi, “one day, two days...”).”
- “First cited in 1746.”
What the labels mean
- 和語 Native Japanese
- Words that were already Japanese before Chinese vocabulary arrived — usually written with kun'yomi and often short.
- Compound
- Two or more words or stems joined into one.
- Derivation
- A word built from a stem plus a suffix or prefix.
- Sound change
- The pronunciation shifted over the centuries.