ETYM Latin brumalis, from bruma winter: cf. French brumal.
Characteristic of or relating to winter; SYN. hibernal, hiemal.
Of or pertaining to winter; pertaining to brume or winter.

ETYM Latin frigidus, from frigere to be cold; prob. akin to Greek rhigos shuddering. Related to Frill.
Devoid of warmth and cordiality; expressive of unfriendliness or disdain; SYN. frosty, frozen, glacial, icy, wintry.

ETYM Cf. AS. fyrstig.
1. Pertaining to, or producing, frost; having power to congeal water; cold; freezing.
2. Covered with frost.
3. Devoid of affection.
4. Appearing as if covered with frost; white; gray-haired.

Extremely cold; frozen.

ETYM Latin glacialis, from glacies ice: cf. French glacial.
Relating to or derived from a glacier.

1. Covered with ice; chilled with ice.
2. Covered with something resembling ice, as sugar icing; frosted.

1. Covered with or containing or consisting of ice.
2. Shiny and slick as with a thin coating of ice.