Etymology of typhoon

The word typhoon (violent storm, whirlwind, tornado), comes from the Greek typhon [whirlwind; Gr: τυφών], personified as a giant, father of the winds, perhaps from typhein "to smoke" (origin of the word typhus).

In modern Greek:

a) typhonas: typhoon [Gr: τυφώνας]

OED
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Etymology of decade

Decade, "ten parts" (of anything), comes from the old French décade (14c.), from the Latin decadem (nom. decas), from the Greek decas (gen. dekados) "group of ten." Meaning "period of ten years" is 1590s in English. See also "etymology of dean" here .
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In modern Greek:
a) decada: ten parts [Gr: δεκάδα]
b) decaetia: ten years period, decade [Gr: δεκαετία]

OED
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Etymology of dime

The word dime (coin worth one tenth of a US dollar, a 10 cent coin) comes from the old French disme (a tenth part), from the Latin decima [tenth (part)], from decem (ten), related to the Greek deca (ten).
See also "etymology of dean" here .

OED

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Etymology of December

The word December comes from the Latin December (tenth month of the old Roman calendar, which began with March), from decem (ten), related to the Greek deca [ten; Gr: δέκα].

See also "etymology of dean" here .
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In modern Greek:
a) Decembrios (better pronounced as Dekemvrios): December [Gr: Δεκέμβριος]
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Etymology of dean

Dean comes from the old French deien, from the Latin decanus "head of a group of 10 monks in a monastery", from earlier secular meaning "commander of 10 soldiers" (which was extended to civil administrators in the late empire), a transliteration of the Greek decanos [Gr: δεκανός], from deca "ten". College sense is from 1570s.
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In modern Greek:

a) deca: ten [Gr: δέκα]

b) deca-: deca- [Gr: δέκα-] (decathlon, decalogue etc.)

c) decaneas: corporal, leader of ten soldiers [Gr: δεκανέας] 

OED
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