It means "love." Since you put it in the Science category, I suppose you mean hydrophilic, which means "water-loving."
The Greek word part for zoology is "zoo," which derives from the Greek word "zoon," meaning "animal." The suffix "logy" comes from the Greek word "logos," meaning "study" or "discourse." Therefore, zoology refers to the study of animals.
If you mean stern as the after part of a vessel, it is from the Old Norse word 'stjorn' meaning the place from where a boat is steered. Stern as in 'strict' comes from the Old Germanic language as 'storrig' meaning obstinate or 'starr' meaning stiff
A word is typically made up of three sections: the prefix (comes before the root word), the root (main part of the word that carries the primary meaning), and the suffix (comes after the root and modifies its meaning).
A gulf. The word is derived from the Old French word "golfe" and the Greek word "kolpos" meaning "bosom, gulf."
The word "metastasis" can be broken down into "meta-" meaning beyond or change, and "-stasis" meaning standing still or stopping. Together, "metastasis" refers to the spread of cancer cells from one part of the body to another.
phil or phile
The word part meaning movement is "kinesio-".
Phil is not a root word. It is not a word at all unless you mean it as the name Phil, as in Dr. Phil. It is however a common prefix and it means love or liking for. Philadelphia literally means, "city of brotherly love." It is also used as a suffix (example: "pedophile").
The word part meaning "toward" is "ad-" or "ac-" as in "adapt" or "accelerate."
A prefix is a word part that appears before a root word to modify its meaning. Some examples of prefixes are "pre-" meaning before and "un-" meaning not.
a part of
The word part domini means master or leader
the meaning of the word in is to go into. Or to be inside something.
Graph is the part of the word that contains the Greek root meaning "write."
The root "phil" in the word philharmonic is of Greek origin.
A suffix is used at the end of a word root to change the meaning of the word.
A prefix is a word part that is added before a word or root to change its meaning. It is commonly used in word formation and can alter the definition of the base word.