philo-, phil-, -phile, -philia, -philic, -philous, -phily, -philiac, -philist, -philism +
(Greek: love, loving, friendly to, fondness for, attraction to; strong tendency toward, affinity for; no hate, hatred, dislike, or negative responses)
rhabdoidephilist
A collector of oddly shaped twigs.
rheophilous, rheophile, rheophily
In biology, thriving in or having an affinity for running water; said of an organism that prefers, or is confined to, running water.
rhizophilous, rhizophile, rhizophily
In biology, growing on roots.
rhoophilous, rhoophile, rhoophily
In biology, thriving in creeks.
rhyacophilous
In biology, thriving in or having an affinity for torrents (streams).
robotophilist
A collector of remote control gear.
rotuliphilist
A collector of baby rattles.
rugophilic, rugophile, rugophily
In biology, thriving on rough surfaces or in surface depressions.
Russophile, Russophilia
An admirer of Russia or its people, language, or culture.
saccrophilist
A collector of wrapped lumps of sugar.
sambotahphilist
A collector of military uniforms.
saprophilous
1. Thriving in humus-rich substrata.
2. Feeding on decaying organic matter.
sathrophilous, sathrophile
In biology, thriving on humus or decaying organic matter.
sciagraphilist
A collector of pencil drawings.
sciophilous, sciophile, sciophily
In biology, thriving in shaded situations, or in habitats of low light intensity.

You may take a self-scoring quiz over some of the words in this section by just clicking this
Philo Quiz #1 link.
Related "love, fondness" units:
agape-;
amat-;
vener-;
venus.