I think teresiar is in the wrong dictionary; or perhaps it is an error by Teresita, tertiar, taracear, pericate, perish, perish, . . . See Basque/Teresiar .
It means postpone, postpone, postpone, delay, delay, prolong. It is also used as a synonym for help, help.
According to , and according to popular Mexican jargon means to postpone, postpone things or take their due time.