Buttress

apoyo

(anything that serves to support something)

boterete

(brick or stone structure built against another structure to support it)

contrafuerte

(brick or stone structure built against another structure to support it)

contrafuerte

(feature jutting out from mountain; crag, bluff)

estantal

(brick or stone structure built against another structure to support it)

estribo

(brick or stone structure built against another structure to support it)

estribo

(feature jutting out from mountain; crag, bluff)

machón

(brick or stone structure built against another structure to support it)

refuerzo

(anything that serves to support something)

sostén

(anything that serves to support something)

afianzar

(support something or someone by supplying evidence)

apuntalar

(support something physically with, or as if with, a buttress)

corroborar

(support something or someone by supplying evidence)