I don't know about any 'yansei' (with long e) but maybe what you are looking for is ''yanse' (with short e) which could be a conjugation of verb 'yansu', used informally and in some dialects, meaning 'to be'.
E.g: Nani shiterun desuka? (What are you doing?)
Nani shite yansuka? (same meaning)
It is 'sutaffu' in Japanese.
"Time" is 'jikan' in Japanese.
Kiri
Oboeru
"Sasori" is how scorpion is said in Japanese.
What is the word 'Honorable' when translated from English to Japanese.
The word sick when translated from English to Japanese is mukatsuku.
The word 'maple' when translated from English to Japanese is カエデ.
The word drag when translated from English to Japanese is hipparu.
There is no equivalent word in Japanese for the English word "a."
The word crown when translated from English to Japanese is oukan or kuraun.
The word listener when translated from English to Japanese is kikite or risuna.
The word 'champion' when translated from English to Japanese is ăăŁăłăăȘăł (champion).
Of= No in Japanese
There's no such word in Japanese.
Tsuki when translated from English to Japanese means "moon".
The word penis when translated from English to Japanese:inkeiyoubutsupenisudankon