"instrument for measuring atmospheric moisture," 1660s, from French hygromètre, from Greek hygro- "wet, moist; moisture" (see hygro-) + -meter. Related: Hygrometry; hygrometric.
hygiene
hygienic
hygienist
hygro-
hygrology
hygrometer
hygroscope
Hyksos
hylo-
Hyman
hymen
)window.location='https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=byronic106@yahoo.com&lc=US&item_name=Donation+to +Help+Keep+Etymonline+Free+and+Open&no_note=0&cn=&curency_code=USD&bn=PP-DonationsBF:btn_donateCC_LG.gif:NonHosted'){kind=link}