Phylactic: (adjective) Protective, preserving, tending to guard against disease or harmful influences. (e.g., Phylactic measures implemented during a pandemic)

Aphylaxis: (noun) The absence of natural defenses against disease or pathogens. (e.g., Immunodeficiency disorders cause aphaxia)

Prophylaxis: (noun) Preventive measures taken to protect against disease or infection. (e.g., Vaccinations are a form of prophylaxis)

Phylactocarp: (noun) A type of fruit with a tough outer covering that protects the seeds inside. (e.g., Walnuts are phylactocarps)

Phylactolaematous: (adjective) Describing a group of aquatic mosses with protective capsules enclosing their reproductive organs.

Protectorate: (noun) A country under the protection of another, usually more powerful, country. (e.g., The British Protectorate of North Borneo)

Sheriff: (noun) A high-ranking law enforcement officer in a county or region. (Etymology: Old English "scirerefa," meaning "shire-reeve" - guardian of the shire)

Philanthropy: (noun) The love of humanity, manifested in charitable acts. (Etymology: "philos" - loving, "anthropos" - human)

Phylar: (noun) A leader of a tribe or clan, often associated with military duties. (e.g., In ancient Sparta, the Phylarchoi led the Moirai)

Phylary: (noun) A tribe or clan, especially in ancient Greece. (e.g., The Athenians were divided into phylai)

Fiancé(e): (noun) A person to whom one is engaged to be married. (Etymology: French "fié(e)," from Latin "fidare" - to trust)

Spy: (noun) A person employed to secretly obtain information on an enemy or rival. (Etymology: Old French "espier," possibly from Latin "specere" - to look)

Safeguard: (verb) To protect or keep something safe from harm. (Metaphor: A guard standing before a safe)

Shelter: (noun) A place providing protection from danger or bad weather. (Metaphor: A roof sheltering people from the rain)

Vigilance: (noun) The state of keeping watchful and alert. (Metaphor: A sleepless guard vigilant against enemies)

Defend: (verb) To protect someone or something from attack or harm. (Metaphor: A warrior defending a castle)

Phylactic: The "k" at the end is a remnant of the Greek suffix "-ikos," meaning "of or relating to." Therefore, phylactic translates to "of or relating to a guard or protector."

Philanthropy: The word combines "philos" (loving) and "anthropos" (human), literally meaning "love of humanity." This reflects the underlying principle of caring for and protecting one's fellow humans.

Sheriff: The journey from "phylarch" to "sheriff" shows how language adapts over time. The Old English "scirerefa" directly translates to "shire-reeve," showcasing the historical role of a sheriff as the guardian of a shire (an administrative division).