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：stego-, steg-, stegano-

【来源及含义】Greek: covering, covered, to cover; roof; by extension, secret, secret writing, applied to a secret code, codes, or ciphers that are hidden

【相关描述】Closely related to Latin tego-, techo-, "to cover".

【相关词根词缀】 A cross reference of other word family units that are related directly, or indirectly, to: "secret, hidden, confidential, concealed": ceal-; clandesti-; crypto-; myster-; occult-; orgy.

【同源单词】acanthostegous, rhinostegosis, steganalysis, steganogram, steganograph, steganographic