Gone Missing

Identify the four or five letter word that was removed from these words. The missing word will always appear in the same order that it's spelled.

Four Letters:

-1. --r-- pl---- r-n--- h---en-a
-2. ---r- --l-te- --he-- ---titu-e
-3. -ob--- -eq-e-- t----ee d--ggi--
-4. a-n--i- ---s-ge co-p-n--te na----ke
-5. ar--n-- a--xu-- --ri-- vi-c-r--
-6. e-d-r-- --i-- --nsen-- --o--
-7. -r--- ---at- con---- --mi-at-
-8. --es-- ----tle ---r-t ca-ec---m
-9. pa---- -ev--v- t---l-y b--i--r
-10. c----se e--g--ce ---r-ing p---sa-t

Five Letters:

-11. -uthe---- m-g-e--- -g-os--- fr-----
-12. -ng---- p----- c--cul--- l-be----

11. authentic, magnetic, agnostic, frantic. antic

Hi Cue.

12. irate
(ingrate, pirate, circulate, liberate)

3. rust
robust, request, trustee, druggist

6 - endorse, noise, nonsense, noose = nose

5. arsenal, sexual, serial, visceral - seal

1. acid - acrid, placid, rancid, hacienda

9. parole, revolve, trolley, broiler - role

4. Mesa - amnesia message compensate namesake

8. this
thesis, thistle, thirst, catechism

7. done - drone, donate, condone, dominate

2 - beard, belated, behead, beatitude = bead

You've roped all but one. Awesome solves!

10. lean
cleanse, elegance, learning, pleasant

You done found it Michele