Morpheme
-ostic
Type
suffix
Denotation
variation of -otic, adjective suffix denoting “pertaining to, characterized by, having the nature of” that corresponds to -osis nouns
Etymology
Ancient Greek -ōstikós, from -ṓskō + -tĭkós (-tos + -kós, source of -ic) or -ôsis + -kós
Evidence
agnostic, diagnostic, diagnostics, gnostic, prognostic
Notes
unanalyzable