obligate
verb
• require or compel (someone) to undertake a legal or moral duty.
• "the medical establishment is obligated to take action in the best interest of the public"
• commit (assets) as security.
• "the money must be obligated within 30 days"
obligate
adjective
• restricted to a particular function or mode of life.
• "an obligate intracellular parasite"
Origin:
late Middle English (as an adjective in the sense ‘bound by law’): from Latin obligatus, past participle of obligare (see oblige). The current adjectival use dates from the late 19th century.
