mantenerse

infinitive of mantener combined with se

(transitive) to keep
(transitive) to maintain, to support
(transitive) to sustain, to preserve, to retain, to uphold
(transitive) to maintain, continue, to keep up
(transitive) to stay, to remain
(reflexive) to maintain, to keep, to stay, to remain
(reflexive) to stand, to hold, to remain, to continue (e.g. hold firm, stand strong, stand together, stand on one's feet)
(reflexive) to stick to (e.g. stick to one's guns)
(reflexive) to be maintained, to be retained, to be sustained