There are two Japanese-language abilities that have both been translated as Spur. The first is きばれ [kibare] or 'exert yourself!' in Japanese. The second is スパー [spur].
Final Fantasy XI
Type: Pet Command
Learn at: BST83, Use: any
Cast Time: instant, Recast: 3 min, Duration: 1 min 30 sec
Range: ?, Radius: pet, Cumulative Enmity: 0, Volatile Enmity: 80
Description: Grants Store TP effect to pets
Other: gives Store TP+20
Other: can be modified by job points, Ferine Ocreae, Nukumi Ocreae and Skullrender
Other: きばれ in Japanese
A Realm Reborn

Type: Summoner Ability
Cast time: (instant), Recast: 120 s, Duration: 20 s
Potency: (varies), Range: 30 yalms, Radius: -
Learn at: SMN45 (quest), Use: SMN
Description: Increases a pet's physical and magical attack power by 40%
Other: スパー in Japanese
Category: Ability