fortify
verb
[ ˈfɔːtɪfʌɪ ]
• provide (a place) with defensive works as protection against attack.
• "the enclave has been heavily fortified in recent years"
Similar:
build defences round,
secure,
protect,
surround,
embattle,
rampart,
mound,
strengthen,
reinforce,
toughen,
consolidate,
bolster,
shore up,
brace,
buttress,
stiffen,
support,
hold up,
• add spirits to (wine) to make port, sherry, or a similar drink.
• "the wine is aged in oak barrels and fortified with French brandy"
Origin:
late Middle English: from French fortifier, from late Latin fortificare, from Latin fortis ‘strong’.