From en.wiktionary.org:
** English
*** Etymology
Borrowed from [en].
*** Adverb
[-] (abbreviated to per pro, p.p.)
1. [en] by the agency of, especially when signing a letter in place of someone else 2. [en] on behalf of (someone who does not sign themselves)
**** Translations
[by the agency of]
- Finnish: [fi] - French: [fr] - German: [de] - Polish: [pl] - Spanish: [es] [trans-bottom]
[on behalf of]
- Finnish: [fi] [trans-bottom]