Since a reply about Italian has already been posted, I'll provide the translation into Ainu and my conlang Lözusöteli:
ku=ihuraye
1ss=wash
"I wash"
Ø=ihuraye
3ss=wash
"He/she/it washes"
("Ø" indicates the lack of personal affixes)
Here, out of context, it is better to use the intransitive
ihuraye (plural
ihuraypa) which, however, means mainly "to do laundry/to wash clothes" since
i- is an incorporated object that can change the meaning of an intransitive verb and not only its valence.
The corresponding transitive verb
huraye can be used when an implied object, understood from previous discourse, is present or when an overt object is present.
As it happens for Japanese, in this case a reflexive counterpart of this verb is formed by using the word "body" (or also other specific body parts) as the direct object of the transitive verb. Although Ainu has a morphological reflexive "
yay-" it is not productive and cannot be added to all verbs. The resulting sentences would thus be:
Kukewehe kuhuraye
ku=kew-ehe ku=Ø=huraye
1ss=body-AFF 1ss=3so=wash
I wash my body (= myself)
Kewehe huraye
Ø=kew-ehe Ø=Ø=huraye
3ss=body-AFF 3ss=3so=wash
He/she washes his/her body (= his/himself)
There are actually some forms of
huraye with an incorporated object referring to a body part, like
tekehuraye "to wash (someone's) hands or
kemahuraye "to wash someone's feet/legs", that are lexicalized in the dictionary as intransitives, but not all the nouns referring to body parts can be incorporated. Plus, there are some verbs formed from an all different stem, like
eworne "to wash (someone's) face".
1ss - first person singular subject
3ss - third person singular subject
3so - third person singular object
AFF - affiliative
Lözusöteli
In Lözusöteli the reflexive is formed suffixing the accusative singular of the personal pronoun to the verb:
Nezi
nez-i
wash.pres-1s
"I wash"
Nezipa
nez-i-pa
wash.pres-1s-I.ACCs
"I wash myself"
Neześ
nez-eś
wash.pres-3s
"He/she washes"
Neześśüm/Neześśöm
nez-eś-þüm/nez-eś-þöm
wash.pres-3s-he.ACCs/wash.pres-3s-she.ACCs
"He/she washes himself/herself"