-ologio

Esperanto

Etymology

Derived from Ancient Greek -λογία (-logía, “-logy, branch of study, to speak”).

Pronunciation

IPA^(key): [oloˈɡio]
Rhymes: -io
Hyphenation: o‧lo‧gi‧o

Suffix

-ologio

denotes the field of the specialist in the root.
‎Esperanto (“Esperanto”) + ‎-ologio → ‎esperantologio (“Esperantology”)

‎psiko (“psyche”) + ‎-ologio → ‎psikologio (“psychology”)

‎socio (“society”) + ‎-ologio → ‎sociologio (“sociology”)

‎zoo (“zoo”) + ‎-ologio → ‎zoologio (“zoology”)

Usage notes

Words ending in -ologio appear in scientific terminology that cannot be reduced further, such as biologio, ekologio, geologio, topologio, etc.