Words related to *keue-
c. 1600, "formed by adding to, increasing inorganically" (a sense now obsolete), from Latin cumulatus, past participle of cumulare "to heap," from cumulus "heap" (from suffixed form of PIE root *keue- "to swell") + -ive. Meaning "increasing by successive additions" is from 1640s (implied in cumulatively).
"pregnant, with child," c. 1600, insente, from French enceinte "pregnant" (12c.), from Late Latin incincta (source of Italian incinta), explained by Isidore of Seville (7c.) as "ungirt," from Latin in- "not" (see in- (1)), + cincta, fem. of cinctus, past participle of cingere "to gird" (see cinch). But the Late Latin word is more likely from Latin inciens "pregnant," from in- (2) "in, into" + second element from PIE root *keue- "to swell," also "vault, hole." Modern form is from 18c., perhaps a reborrowing from French.
"to hollow out, make hollow by digging or scooping, or by removing extraneous matter," 1590s, from Latin excavatus, past participle of excavare "to hollow out," from ex "out" (see ex-) + cavare "to hollow, hollow out," from cavus "cave" (from PIE root *keue- "to swell," also "vault, hole"). Related: Excavated; excavating.
"hut built by miners over a mine shaft," to store their equipment, etc., 1650s, from some source akin to Dutch kouw, German kaue in the same sense, from West Germanic *kauja-, an early borrowing of Latin cavea "hollow," from cavus "a hollow" (from PIE root *keue- "to swell," also "vault, hole").