With a few extreme exceptions where the Greek roots would be deemed confusing to modern audiences, and in the case of a few neologisms, philias and phobias must have a Greek first portion. If someone is in love with shadows it would be sciophilia, and if they are in love with darkness it would be scotophilia.
Love of eclipses would be, since the word "eclipse" is itself an anglicized Greek word, ecleipsophilia.
Know your Greek roots.
ἡ δὲ κἀκ τριῶν τρυπημάτων ἐργαζομένη ἐνεκάλει τῇ φύσει, δυσφορουμένη, ὅτι δὴ μὴ καὶ τοὺς τιτθοὺς αὐτῇ εὐρύτερον ἢ νῦν εἰσι τρυπώη, ὅπως καὶ ἄλλην ἐνταῦθα μίξιν ἐπιτεχνᾶσθαι δυνατὴ εἴη. – Procopius
Ummaka qinnassa nīk!
*MySmiley*