pneumato-

From Ancient Greek πνεῦμα (pneûma).

• (Received Pronunciation) IPA^(key): /ˈ(p)njuːmətəʊ/

pneumato-

1. Relating to air.

This prefix is sometimes synonymous with pneumo-.

• “Pneumato-” listed on page 1,032 of volume 7 (O–P) of A New English Dictionary on Historical Principles [1ˢᵗ Ed.; 1909]
    Pneumato- (pniūmăto, niū·-), before a vowel pneumat-, a. Gr. πνευματο-, combining form of πνεῦμα air, breath, spirit: see Pneuma. Used, with various senses, chiefly in scientific and other technical words; for the more important of these, see their alphabetical places. (Also contracted to pneumo-: see Pneumo-, and cf. hæmo-, etc.)
• “pneumato-” listed in the Oxford English Dictionary [2ⁿᵈ Ed.; 1989]
    /pnjuːmətəʊ, njuː-/
• “pneumato-, comb. form” listed in the Oxford English Dictionary [draft revision; Sept. 2009]