noun

1. a spiral or coil
2. any of the convolutions of a spiral or coil
3. Zool. the upper part of a spiral shell of a gastropod

Etymology: Fr < L spira < Gr speira < IE base *sper-, to turn, wrap > Latvian sprangāt, to lace up

noun

1. a sprout, spike, or stalk of a plant, a blade of grass, etc.
2. the top part of a pointed, tapering object or structure, as a mountain peak
3. anything that tapers to a point, as a pointed structure capping a tower or steeple

Etymology: ME < OE spir, akin to ON spīra: for IE base see spike

intransitive verb spired, spiring spir′·ing