hirtellous \hur-TEL-uhs, verb:

Minutely hirsute.

Any noticeable hirsute or even hirtellous shadings visible upon the represented, unclothed, female form, anywhere below the eyebrows, say, is, in the judgment of this Department…
— Frank Yerby, Tobias and the Angel

A small annual herb commonly 20 to 40 cm. tall, sparingly branched above, hirtellous on the stems with small downwardly curled hairs…
— Carnegie Institution of Washington, Botany of the Maya Area

Hirtellous comes from the Latin word hirt meaning “hairy.” The suffix -ellus is a diminutive adjective suffix.