- tardigrade (adj.)
[tardigrade 词源字典]
- 1620s, "slow-going, slow-moving," from French tardigrade (17c.), from Latin tardigradus "slow-paced," from tardus "slow" (see tardy) + gradi "to walk, go, step" (see grade (n.)).[tardigrade etymology, tardigrade origin, 英语词源]