词根词缀：-ac

【来源及含义】Greek > Latin: suffix; from French -aque, or directly from Latin -acus, from Greek -akos forming adjectives. This suffix was used to form names of arts and sciences in Greek and it is now generally used to form new names of sciences in English; meanings, "related to, of the nature of, pertaining to, referring to"

【相关描述】The suffix -ic has related elements.

【同源单词】ambrosiac, ammoniac, amnesiac, anaphrodisiac, anthomaniac, antidemoniac

词根词缀：cholo-, chol-, chole-

【来源及含义】Greek: bile, gall

【同源单词】angiocholecystitis, angiocholitis, autocholecystoduodenostomy, autocholecystotransversecolostomy, cholagogic, cholaligneic

词根词缀：melano-, melan-, mela-, melen-

【来源及含义】Greek: the color black; dark

【相关词根词缀】Other related "dark; shadow, shade; black" units: lygo-; nigri-; nocti-; nycti-; scoto-; skio-; umbra-.

【同源单词】hepatomelanosis, leucomelanous, melancholia, melancholiac, melancholic, melancholy