It means "love." Since you put it in the Science category, I suppose you mean hydrophilic, which means "water-loving."
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 gulf. The word is derived from the Old French word "golfe" and the Greek word "kolpos" meaning "bosom, gulf."
The term radioactive comes from Madame and Pierre Curie, who combined the Latin term radius, meaning beam of light, and actif, meaning, active.Its not a prefix, its simply part of the word.
The meaning of the science word refine means your mom
Navsheen is a Kashmiri-origin word meaning "the first snowfall of the winter season".
phil or phile
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 part of
The word part domini means master or leader
It is the real surname of music producer Phil Spector. The word "spectre" or "specter" (depends on where you live) is a real word meaning ghost.
Graph is the part of the word that contains the Greek root meaning "write."
The word part "in-" means "not" or "without." It is often used as a negative prefix to indicate the absence or opposite of something.
The root "phil" in the word philharmonic is of Greek origin.
A conjunction is a part of speech that connects words, phrases, or clauses within a sentence. It is not the dictionary meaning of a word itself, but rather a grammatical function within a sentence.
A suffix is used at the end of a word root to change the meaning of the word.
Phil is a Greek name. It has no meaning in Hebrew.