Am 27.07.2016 um 16:46 schrieb SuStel:

intended. If I write my name at the bottom of a letter, that is not
*qI'.* If the President of the United States writes his or her name at
the bottom of a bill, that is *qI'.*

I belong to those people who prefer to stretch the meaning as far as possible. So since we do not have the word for "sign a letter" I think it's okay to use "sign (a treaty)" for that purpose.

I think this treaty thing is added just to make sure that it's a the verb for writing your name on a paper, and not "to make a sign": "He signed to her to go away."

I think this treaty thing is added just to make sure that it's the verb for authorizing an agreement like a treaty, and not "to make a sign" or "sign one's name."

You see the problem here...

Furthermore, in the Star Trek universe, not all treaties are signed on paper. ("The treaty, set by subspace radio...")

-- 
SuStel
http://trimboli.name