词根词缀：acantho-, acanth-, -acanth, -acanths, -acanthid, -acanthous

【来源及含义】Greek: used either as a prefix or as a suffix; pointed appendages; spine, spiny; thorn, thorny

【同源单词】acanth, acantha, acanthaceous, acanthamebiasis, acanthamoeba, acanthesthesia

词根词缀：tragico-, tragi-, trago-, trag-

【来源及含义】Greek: goat

【相关词根词缀】 Related goat-word units: aego-; capri-; hirco-.

【同源单词】tragacanth, tragal, tragedian, tragedienne, tragedy, tragelaph