词根词缀：epi-, ep-

【来源及含义】Greek: above, over, on, upon; besides; in addition to; toward; among

【相关词根词缀】 Related "above, over, beyond the normal, excessive" word units: hyper-; super-, supra-, sur; ultra-, ult-.

【同源单词】anepigraphous, cotyledon, endoepidermal, ephemeral, epibasal, epibasidium

词根词缀：psammo-, psamm-, psamme-

【来源及含义】Greek: sand

【同源单词】clepsammia, endopsammon, epipsammic, epipsammon, mesopsammon, pelopsammic