イクラ
Confidentikura
salmon roe
katakana
Origin
- Source language
- Russian (ru)
- Source form
- ikra / икра
- Borrowing route
- ロシア語 → 北方・食品語として日本語へ
- Semantic shift
- 魚卵・キャビア類 → 主に鮭の卵
- First attested
- 1900
Story
If イクラ feels like it was born on a sushi counter, surprise — the word is Russian before it is restaurant Japanese. Those glossy orange salmon eggs in a gunkan-maki or scattered over rice are called イクラ, but the usual source is Russian икра (ikra), a broad word for fish roe and caviar.
Japanese did what Japanese often does with a foreign consonant cluster: ikra gained a vowel and became i-ku-ra. The sound got smoother, and the meaning got narrower. In Russian, ikra can cover different kinds of roe. In Japanese food talk, イクラ usually means separated salmon or trout eggs, often salted or marinated in soy sauce. If the eggs are still held together in the membrane, Japanese has another useful word: 筋子, sujiko.
Here is the menu-level surprise: in Russian, “red caviar” is krasnaya ikra, the salmon-roe side of the family, while “black caviar” is chyornaya ikra, the sturgeon side. To a Japanese learner, イクラ may feel like one very specific sushi topping. To Russian, the source word belongs to a larger roe universe.
This is why the word is so memorable. Sushi vocabulary often looks deeply native from the outside, but Japanese food language has always been happy to borrow when trade, fishing, and contact brought a useful name. イクラ is not just “sake no tamago” in ordinary restaurant speech; it is the standard word you will actually see on menus, supermarket labels, and donburi shops.
So the next time those orange pearls pop, remember: even a classic sushi word can arrive by sea. The next bite-sized Japanese word may have crossed an even colder border.
Sources
These sources are pending verification by editors. Reliability may be revised after review.