Seconded
Definition: to send an employee to work somewhere else temporarily
The trick here is that the emphasis is on the second syllable: “se-CON-ded.” It doesn’t sound at all like the ordinal “first, second, …”
Why I Looked It Up
In Lawrence of Arabia, a character says:
I’ve been seconded to the Arab bureau.
Postscript
Added on
On someone’s LinkedIn profile, I saw this entry:
Director, Global Content Marketing (Secondment)
I’m reading that as they were seconded to that role temporarily (they had only been in it for four months).