pet- / Indo-European roots


To rush, fly.

Also petə-. Oldest form *peth1-. Variant *pteh1-, becoming *ptē-.

Derivatives include feather, compete, perpetual, ptomaine, symptom, hippopotamus.

1. Suffixed form *pet-rā-. feather from Old English fether, feather, from Germanic *fethrō, feather.
2. -petal, petition, petulant; appetite, compete, impetigo, impetuous, impetus, perpetual, repeat from Latin petere, to go toward, seek.
3. Suffixed form *pet-nā-. panache, pen1, penna, pennate, pennon, pin, pinna, pinnacle, pinnate, pinnati-, pinnule; empennage from Latin penna, pinna, feather, wing.
4. Suffixed form *pet-ro- in compound *aku-petro- (see ōku-)
5. Suffixed form *pet-yo-. propitious from Latin propitius, favorable, gracious, originally a religious term meaning "falling or rushing forward" hence "eager" "well-disposed" (said of the gods; prō-, forward; see per1)
6. Suffixed zero-grade form *pt-ero-. -pter; apteryx, archaeopteryx, coleopteran, dipteral, isopteran, mecopteran, monopteros, orthopteran, peripteral, plecopteran, pteridology, pterygoid, sauropterygian from Greek pteron, feather, wing, and pterux, wing.
7. Suffixed zero-grade form *pt-ilo-. coleoptile from Greek ptilon, soft feathers, down, plume.
8. Reduplicated form *pi-pt-. ptomaine, ptosis; asymptote, peripeteia, proptosis, symptom from Greek piptein, to fall, with verbal adjective ptōtos (< *ptō-to-), falling, fallen, and nominal derivatives ptōsis (< *ptō-ti-), a fall, and ptōma (< *ptō-mn̥), a fall, fallen body, corpse.
9. O-grade form *pot-. hippopotamus, potamology from Greek potamos "rushing water" river (-amo-, Greek suffix).
10. Suffixed form *pet-tro-. talipot from Sanskrit pattram, feather, leaf.

[Pokorny 2. pet- 825.]

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