词根词缀：dorso-, dors-, dorsi-, -dorsal

【来源及含义】Latin: back, on the back, pertaining to the back, near the back

【相关词根词缀】 Word families with similar applications: "back, backside" word units: lumbo- (loin, lower back); nuch- (nape of the neck); pygo- (rump, rear end, back side).

【同源单词】antedorsal, centrodorsal, dorsa, dorsad, dorsal, dorsalis

词根词缀：endo-, end-

【来源及含义】Greek: within, inside, into, in, on, inner

【相关词根词缀】 Inter-related cross references, directly or indirectly, involving word units dealing with "form, shape, appearance": figur-; form-; icono-; ideo-; imag-; morpho-; -oid; typo-.

【同源单词】endaortic, endoabdominal, endobenthos, endobiontic, endobiosis, endobiotic

词根词缀：-ment

【来源及含义】Latin: a suffix; result of, means of, act of; place of action

【相关描述】The suffix -meant is a final word element derived through Middle English and French from the Latin suffix -ment(um), originally used to form agent and action nouns from verbs, now used to form nouns and denominative verbs in several related senses:

The verb combinations show no change in basic form: cement, compliment, lament.

Principal parts: -menting, -mented, -mented.

Related forms: -mentum (singular); -menta, -menti, -ments (plurals).

【同源单词】abolishment, abridgment, accompaniment, accomplishment, accouterment, achievement