Hän valehteli rahasta.

Hän can mean either he or she. Standard Finnish does not mark gender in third-person singular pronouns.

So:

• hän = he / she
• the sentence does not tell you the person’s gender

This is very normal in Finnish. If the gender matters, it usually has to be understood from context.

The dictionary form is valehdella, meaning to lie.

In the sentence, valehteli is the finite verb form built from valehdella.

So:

• valehdella = to lie
• valehteli = lied

Valehteli is:

• past tense
• third person singular

So it means he/she lied.

You can compare:

• minä valehtelin = I lied
• hän valehteli = he/she lied
• he valehtelivat = they lied

Valehdella is a type 3 verb in Finnish.

A useful way to think about it is:

• dictionary form: valehdella
• verb stem: valehtele-
• past form pattern gives: valehteli

You do not need to memorize every internal sound change perfectly at first; the main practical point is:

• valehdella → valehteli

This same general pattern appears in many other type 3 verbs, for example:

• ajatella → ajatteli
• opiskella → opiskeli

Because Finnish uses case endings where English often uses prepositions.

Here, raha becomes rahasta, which is the elative case ending -sta/-stä.

So:

• raha = money
• rahasta = out of/from money, but with some verbs it can mean about money

With valehdella, the thing you lie about is commonly put in this -sta/-stä form.

Yes, the elative case often has a basic meaning like from or out of.

But Finnish cases also have verb-specific uses. Certain verbs require a particular case even when the English translation uses a preposition like about.

With valehdella, Finnish commonly uses the pattern:

• valehdella jostakin = to lie about something

So in this sentence:

• rahasta = about money

This is a matter of case government: the verb helps determine which case is used.

Normally, this sentence is understood as lied about money, not lied for money.

If you want to say for money, Finnish would usually use a clearer expression, for example:

• rahan takia = because of money / for money
• rahan vuoksi = because of money
• saadakseen rahaa = in order to get money

So the safest interpretation of Hän valehteli rahasta is He/She lied about money.

Because Finnish often expresses meanings like about, in, from, to, and with through case endings instead of separate prepositions.

English uses:

• lied about money

Finnish uses:

• valehteli rahasta

So the idea of about is carried by the form rahasta, not by a separate word.

Not in the same way as an English direct object.

In this sentence, rahasta is better understood as a case-governed complement of the verb valehdella.

That means:

• valehdella does not take raha here as a normal direct object
• instead, it uses the elative form rahasta

So Hän valehteli rahaa would not be the normal way to express this meaning.

The given order is the most neutral one.

• Hän valehteli rahasta. = neutral statement

Finnish word order is fairly flexible, but changing it usually changes the emphasis:

• Rahasta hän valehteli. = It was about money that he/she lied
• Valehteli hän rahasta. = marked, poetic, or context-driven emphasis

So the original sentence is the normal, straightforward way to say it.