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Ancient Greek πτερόν
← English feather (cognate)
← Ancient Greek πέτομαι (mention)
← Proto-Indo-European *peth₂- (root)
← Proto-Indo-European *péth₂r̥ (derived)

→ English acanthopterous (mention)
→ English acanthopterygian (mention)
→ English pen (cognate)
→ English helicopter (mention)
→ English ornithopter (mention)
→ English pterodactyl (derived)
→ English lepidopterology (mention)
→ English ptero- (mention)
→ English pteropod (derived)
→ English dipteran (affix)
→ English pterion (derived)
→ English hymenopteran (affix)
→ English pteranodon (derived)
→ English -pter (borrowed)
→ English apteran (derived)
→ English pterostigma (mention)
→ English elaeoptene (mention)
→ English coleopteral (mention)
→ English pterotic (derived)
→ English pteron (mention)
→ English monopteros (mention)
→ English pteronophobia (mention)
→ English periptery (derived)
→ English pteroid (mention)
→ English winged word (mention)
→ English helicopteron (mention)
→ Cebuano helikopter (mention)
→ Danish helikopter (mention)
→ German Helikopter (mention)
→ Greek φτερό (inherited)
→ Spanish pterodáctilo (derived)
→ Spanish helicóptero (mention)
→ Spanish himenóptero (mention)
→ French hélicoptère (mention)
→ French ptérodactyle (mention)
→ French coléoptère (mention)
→ French hyménoptère (mention)
→ French héli- (compound)
→ Galician helicóptero (mention)
→ Ancient Greek πτέρυξ (mention)
→ Ancient Greek πτέρις (mention)
→ Ancient Greek πτέρινος (affix)
→ Ancient Greek δίπτερος (affix)
→ Ancient Greek ὑμενόπτερος (affix)
→ Ancient Greek φοινικόπτερος (affix)
→ Ancient Greek κολεόπτερος (affix)
→ Ancient Greek μελανόπτερος (affix)
→ Ancient Greek ποικιλόπτερος (affix)
→ Ancient Greek λευκόπτερος (affix)
→ Ancient Greek κυανόπτερος (affix)
→ Italian balenottera (mention)
→ Italian megattera (mention)
→ Italian attero (mention)
→ Latin pterus (derived)
→ Latin erythropterus (mention)
→ Latin peripterous (derived(la/en))
→ Latin apterium (derived(la/en))
→ Latin chloropterus (mention)
→ Latin peripter (derived(la/en))
→ Latvian putns (mention)
→ Latvian helikopters (mention)
→ Malay helikopter (mention)
→ Translingual Orthoptera (mention)
→ Translingual Lepidoptera (mention)
→ Translingual Coleoptera (mention)
→ Translingual Endopterygota (mention)