词根词缀：pend-, -pens, -pense, -pending, -pended

【来源及含义】Latin: hang, hanging; weigh, weighing; to cause to hang down; related to words in this pond- unit.

【同源单词】antependium, append, appendage, appendalgia, appendant, appendectomy

词根词缀：penetra-, penetr-

【来源及含义】Latin: penetrare, penetratus, to go into, to enter, to pierce; to pass through, to pass into; a place within

【同源单词】impenetrable, impenetrableness, impenetrably, nonpenetrative, penetrability, penetrable

词根词缀：peni-, pen-

【来源及含义】Latin: paene, almost, nearly

【同源单词】antepenult, antepenultimate, antepenultimate, Baja California Peninsula, Iberian Peninsula, peninsula

词根词缀：-penia- (s), -penias (pl), -penic, pen-, penia-

【来源及含义】Greek > Modern Latin: abnormal reduction, decrease in, insufficient, deficiency. Originally, the meaning was poverty, need; sometimes it is erroneously or incorrectly rendered as -poenia

【同源单词】calcipenia, chloropenia, cytoglucopenia, cytopenia, eosinopenia, erythroblastopenia

词根词缀：penna-

【来源及含义】Latin: feather, feathers; by extension in some situations, wing, wings

【相关词根词缀】 Related "feather, feather-like; soft down, plumage" word units: pinni-, pin-; plum-, -plume; pterido-; ptero-; ptilo-.

【同源单词】bipennate muscle, bipennate, brevipennate, empennage, impennate, longipennate

词根词缀：penta-, pent-, pente-, pento-

【来源及含义】Greek: five; a number used as a prefix

【同源单词】molybdenum pentachloride, pentacanth, pentacanthous, pentachord, pentacle, pentactinal

词根词缀：penthera-; penthero-

【来源及含义】Greek: mother-in-law; father-in-law

【同源单词】pentheraphilia, pentheraphobia, pentherophilia, pentherophobia

词根词缀：pepto-, pept-, -peptic, pepsi-, -pepsia, -pepsy

【来源及含义】Greek: digestion, able to digest; cook; from "to cook, boil, digest"

【同源单词】apepsia, apepsinia, bradypepsia, dyscrasia, dyspeptic, eupepsia

词根词缀：per-

【来源及含义】Latin: through, across, over; beyond, by means of

【同源单词】Ad astra per aspera, Ad augusta per angust, Ad perpetuam rei memoriam, Ad virtutem per sapientiam, ampersand, antiperspirant

词根词缀：peri-

【来源及含义】Greek: around, enclosing, surrounding, about, near, close; often used as a prefix

【相关词根词缀】 Related "around, round, surrounding" units: ambi-; ampho-; circ-; circum-; cyclo-, -cycle; gyro-.

【同源单词】abdominal fascia, adominoperineal, aeroperitonia, anoperineal, colpoperineoplasty, colpoperineorrhaphy