from the GNU version of the Collaborative International Dictionary of English
- n. A species of European warbler (Sylvia hippolais); -- called also chip-chap, and pettychaps.
from The Century Dictionary and Cyclopedia
- n. A common European bird of the subfamily Sylviinæ or warblers, the Sylvia hippolais (Latham), S. rufa (Bechstein), now Phylloscopus rufus: a near relative of the willow-warbler and wood-warbler, which it much resembles.
- To utter the notes of the chiff-chaff.
Sorry, no etymologies found.