дьяволенок
or
Mahlyenki Dyavol (according to the Vladimir Tod Series)
To say "just a little" in Russian, you can say "немного" (nemnogo).
"Очень мало" (Ochen' malo) is how you say very little in Russian.
To say "a little bit" in Russian, you can say "немного" (pronounced as "nemnogo").
In Russian, you can say "малыш" (malysh) to mean 'little one'.
Маленький ребенок is little baby in Russian.
"Младшая сестра" is how you say little sister in Russian.
You can say "толстый малыш" in Russian to mean "little fat boy".
You can say "маленький монстр" in Russian to mean "little monster."
In Russian, you would say "младший брат, подойди сюда" to say "little brother, come here".
мальчик
I have herd that Pokemon means little devil, or deamon.
In Russian, "little rose" is "маленькая роза" (pronounced: ma-leen-kaya ro-za).