Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Proto-Indo-European *h₁ey-

→ English January (derived)
→ English exit (root)
→ English exit (derived)
→ English itinerary (root)
→ English ambition (root)
→ English ambitious (root)
→ English yode (inherited)
→ English initiation (root)
→ English initiate (root)
→ English perish (root)
→ English issue (root)
→ English ambit (derived)
→ English transition (root)
→ English isthmus (root)
→ English transit (root)
→ English initial (root)
→ English obituary (root)
→ English ambient (root)
→ English preterite (root)
→ English ambiance (root)
→ English eid (derived)
→ English obit (root)
→ English obit (root)
→ English subitize (root)
→ English coitus (root)
→ English introit (root)
→ English introit (derived)
→ English iter (root)
→ English inition (root)
→ English subitive (root)
→ English disperish (root)
→ Avestan 𐬀𐬉𐬙𐬍 (inherited)
→ Old English eode (inherited)
→ Belarusian ісці (derived)
→ Cebuano Enero (derived)
→ Czech jet (derived)
→ German Aller (mention)
→ German eilen (derived)
→ Esperanto preterito (root)
→ Spanish ir (derived)
→ Spanish enero (derived)
→ Persian آمدن (inherited)
→ Persian جن (derived)
→ Persian آی (inherited)
→ French Ain (derived)
→ Mycenaean Greek 𐀂𐀍𐀳 (derived)
→ Ancient Greek εἶμι (root)
→ Ancient Greek εἶμι (inherited)
→ Ancient Greek ἰταμός (root)
→ Ancient Greek ἰταμός (derived)
→ Hindi अनुयायी (root)
→ Hittite 𒄿𒅀𒀜𒋫 (derived)
→ Indonesian jendela (derived)
→ Indonesian Januari (derived)
→ Ashokan Prakrit 𑀏𑀢𑀺 (root)
→ Ashokan Prakrit 𑀏𑀢𑀺 (mention)
→ Prakrit 𑀏𑀤𑀺 (root)
→ Italian gire (derived)
→ Italian iniziatico (root)
→ Italian esiziale (root)
→ Italian redituro (root)
→ Italian redituro (mention)
→ Italian esizio (root)
→ Konkani येव्चे (root)
→ Konkani येव्चे (mention)
→ Latin eo (root)
→ Latin coitus (root)
→ Latin itus (root)
→ Latin itus (mention)
→ Latin iter (root)
→ Latin iter (mention)