この薬は、本来毒である。

この薬は、本来毒である。

This medicine is a natural poison.

この薬(くすり)は、本来(ほんらい)毒(どく)である。

Kono kusuri wa, honrai doku de aru.

此の (この)

this (something or someone close to the speaker (including the speaker), or ideas expressed by the speaker)

薬 (くすり)

medicine; pharmaceuticals; (legal) drugs; efficacious chemical (i.e. gunpowder, pesticide, etc.); (pottery) glaze; small bribe

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

本来 (ほんらい)

originally; primarily; essentially; naturally; by nature; in (and of) itself; proper; legal

毒 (どく)

poison; toxicant; harm; evil influence; ill will; spite; malice; abusive language

だ (だ)

be; is; indicates past or completed action; indicates light imperative

或 (ある)

a certain ...; some ...

Readings: ヤク、くすり

Meanings: medicine, chemical, enamel, gunpowder, benefit

Readings: ホン、もと

Meanings: book, present, main, origin, true, real, counter for long cylindrical things

Readings: ライ、タイ、く.る、きた.る、きた.す、き.たす、き.たる、き、こ

Meanings: come, due, next, cause, become

Reading: ドク

Meanings: poison, virus, venom, germ, harm, injury, spite